Tangled And Romantic History With Guns - Free Essay Example

Sample details Pages: 3 Words: 802 Downloads: 5 Date added: 2019/03/19 Category Society Essay Level High school Tags: Gun Control Essay Did you like this example? The United States of America has always had a tangled and romantic history with guns, and as the nation owning more guns than any other country in the world, some Americans view gun ownership and violence as a grave social danger. Several organizations and movements have formed in the last two centuries with the hopes of regulating the availability of firearms and limiting the freedom to own firearms. The ultimate goal then and now is to reduce crimes and accidents that involve guns. Don’t waste time! Our writers will create an original "Tangled And Romantic History With Guns" essay for you Create order However, the entanglements of gun rights and organizations have put up a strong fight to hold on to their weapons. In early America, guns were necessary for food and protection. With land unclaimed buy any lord or noble, hunting became an important source of food for early settlers. As the settlers began to embrace a more rural lifestyle, guns became a tool of everyday life in order to protect livestock, crops, and the family unit especially from the psychological threat of Indians. As America expanded, the South developed a non-utilitarian enjoyment of firearms for sport and target shooting. Every boy was taught to shoot. Soon enough, lighter and more powerful rifles and revolvers developed. To Americans, guns were essential to insure protection of local militias and the right to revolution. However, guns were also recreational and competitive. In 1871, the National Rifle Association formed to promote and encourage rifle shooting on a scientific basis. Following World War I, the transition to urbanization begins the association of guns with tragedy and death rather than sport. Entering the twentieth century, the rise of organized crime and the spirit of the prohibition led to a more intense push towards gun control and regulation. New York City was the first American city to see gun control regulation, and the Sullivan Act forced citizens to have a permit to purchase and own a firearm. With so little media coverage, there was little opposition from gun manufacturers and dealers. Although gun deaths stabilized, effectiveness was difficult to prove. The legislation followed an assassination attempt on the mayor of the city, William Gaynor, and this series of events foreshadowed a future of assassinations having the emotional impact to hinder gun crime. Signed into law in May of 1911, legislation regarding gun control did not pick up again for two decades. The motivation of early gun control movements were focused on helping the citizen, hurting the criminal. However, a majority of Americans still held the opinion that for ordinary, law abiding citizens, a pistol or revolver is a necessity to protection of himself and his family. This did not hinder the activists, and their actions led to the cease of the sale of guns and rifles by Sears Roebuck department store in 1924. Boycotts and economic tools will be utilized in the modern fight as REI, Walmart, and Dicks Sporting Goods respond to pressure by changing their policies on gun sales. The 1930s saw the adoption of the first two significant gun control laws on the federal level: the National Firearms Act in 1934 and the Federal Firearms Act in 1938. Early versions of these laws were deemed highly controversial, and the NRA actively condemned the potential legislation. As the final forms of the laws evolved, the NRA backed off, for they did not affect the rights of the honest citizen to own rifles, pistols, and shotguns. This was the first instance of National Rifle Associations involvement in legislation. The gun control movement slowed from 1940 to 1960 due to the events of World War II, the Korean War, and the start of the Cold War. Americans found the obstruction of rights, especially to own firearms, undesirable during a time of crisis. Additionally, witnessing the increase of strict gun control laws in Europe made Americans grip their weapons more tightly. For example, strict gun control laws in the United Kingdom left the country unarmed during the outbreak of World War II. When the potential for German invasion rose, many of the Home Guardsmen were only armed with the same Brown Bess muskets carried in the American Revolution almost two hundred years prior. In other parts of Europe, Americans saw citizens being forced to surrender their guns to the invading Nazis. In the end of the fifties, a Gallup poll in August of 1959 showed that 75% of the population and 65% of gun owners would favor a law requiring a permit for a person to buy any gun. A month later, another poll showed that 59% of all persons interviewed favored a total ban on handguns, except for police use. Yet, the same poll showed that 49% of the respondents had a gun in their home. The only major reason suggested by the press in the 1950s for such ~high anti-gun sentiment is a concern over the eruption of violence over the civil rights issue in the south.

When one looks at how the media continues to communicate...

When one looks at how the media continues to communicate certain messages to the American public, it is remarkable how some trends have continued for decades. This is particularly true concerning images and graphics and the subtle messages that they carry in the world of print communications. The unfortunate reality is that the media is no different from many institutions in American society in that it has to sell products to the public in order to stay financially stable. As a means of doing so, the media provides audiences with images that often satisfy their desires and meet their expectations. Consequently, the inclusion of such stereotypes creates a vicious cycle as the audience continues to be exposed to such messages and†¦show more content†¦The country will always know about African-American basketball players who reside in coastal cities such as New York or Los Angeles, but the small town country boy will remain a mystery to the nation. Furthermore, the inclusion of the scantily clad cheerleaders on both covers suggests that it is the girls’ responsibility to keep their man’s physical talents top secret. As both Larry and Doug are positioned in a traditional masculine manner by having their brawny arms flexed around their hips, the cheerleaders surrounding them are bending down to show off their sexy and fit bodies. The message remains through the decades that in terms of our athletic heroes, it is the women’s job to serve the supporting role of serving in their best interests. As Potter explains, the media has remained just as influential as it ever has in terms of reaching a vast number of people. â€Å"People continue to spend more and more time with the media. Over the past three decades, every new survey of media use has shown that the average person is increasing exposure every year† (Potter 5). With such rampant exposure, the institution of the media has become only more powerful in its efforts to disseminate messages that perpetuate stereotypes and reinforce the audience’s previously held beliefs. Unfortunately, Sports Illustrated continues to perpetuate backwards stereotypes by issuing its very popular swimsuitShow MoreRelatedEating Disorders and the Media Essay1287 Words   |  6 PagesEating Disorders and the Media American writer Allen Ginsberg once said: Whoever controls the media-the images-controls the culture. Nothing could be truer, the media has always influenced fashion and body shape. But whats remarkable now is how much the media affects body image, and how willing and eager people are to mess with Mother Nature. (Underwood, par.2) Although there are other factors that contribute to eating disorders the media can partially be blamed for the millions of peopleRead MoreMedia Influences Terrorism779 Words   |  3 Pagesover its true definition (White Jonathan, et al. 7). It was not until after the 9/11 attacks, when the media started to bring terrorism in its headlines. By then, terrorism became a popular topic for its drama. Drama attracts audiences to read, watch, or listen to their advertisements (White, Jonathan, et al. 74). I believe the media does influence terrorism because it attracts attention, generalizes certain groups of people, and the use of communicating through the int ernet. Without having terrorismRead MoreWriting2 WP12402 Words   |  6 Pages In the United States, the media tends to only highlight violence that is occurring overseas when in reality gun violence has escalated to new heights in our own country. 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They celebrities and models in the media are beautiful, symmetric, flawless and perfect in all the right places. There is something that society needs to realize. Society is being fooled. The beauty shown in media is not realistic and it is not obtainable. For our public advocacy project, we want to dispel media’sRead MoreNew Technology For Plastic Surgery Emerging1665 Words   |  7 Pagesperson. There is always new technology for plastic surgery emerging, and celebrities are usually the first ones to try it, because of their wealth, and because plastic surgeons want other people to follow in the path of these celebrities. Celebrities appear to be agele ss as the craze for anti-aging cosmetics becomes more prevalent in society. People also undergo plastic surgery in order to look like a celebrity. Going back to the article, Newer Trends in Facial Rejuvenation, it is inferred in the beginningRead MoreThe Emergence of Social Media in the 21st Century 2678 Words   |  11 Pagesday. Over the past decade, however, one of the culprits of the change has been due to technological advances. The most prominent technological advance of the last decade has been the emergence of social media such as Facebook and Instagram. As with all advances, both positive and negative byproducts have surfaced. Social media benefits the public by providing a more accessible way to communicate with others and creating a more united community. However, social media has become a negative outlet forRead MoreHow Texting Affects Literacy in Teenagers4801 Words   |  20 PagesRebecca Jimenez Professor Sarah Thatcher English 114 19 September 2013 How Texting Affects Literacy in Teens – Brainstorming Outline: I. Introduction a. Thesis statement: In this paper, I will discuss how the frequent use of text messaging by teens today negatively affects literacy and I will offer suggestions that parents and teachers can implement and teach in order to raise reading, writing, and vocabulary skills. 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History of Oldtown Free Essays

1. 2 Brief explanation of the company’s history The  OldTown White Coffee,  OTWC  (Chinese:   ) is the largest  kopitiam  restaurant  chain in  Malaysia. Its main headquarters is in  Ipoh, Perak,  Malaysia. We will write a custom essay sample on History of Oldtown or any similar topic only for you Order Now Established in 1999, the co-founders and Executive Director, Mr. Goh Ching Mun and Mr. Tan Say Yap are the incorporation of White Cafe and provide quality white coffee to Malaysian households and the food services industry. It manufactures instant beverage mixes and products, in addition to operating over 180 cafe outlets throughout Malaysia and the region. With more than 10 years of experience in the coffee beverage industry, both of co-founders were instrumental in the growth of the Oldtown Group of companies. Next, Mr. Lee Siew Heng, Group of Managing Director who played a significant role in implementing the overall vision, strategy and development of the Oldtown Group is the one of support them to incorporation Oldtown Group. In 1999, they successfully to commercialize the instant 3-in-1 coffee mix under the â€Å"OLDTOWN† brand name for the retail sector. By end of 2009 October, the â€Å"OLDTOWN† 3-in-1 instant coffee mix was sold in approximately 1,348 retail outlets nationwide in Malaysia, approximately 550 retail outlets in Singapore and approximately 2,100 retail outlet in Hong Kong. In 2000, the â€Å"OLDTOWN† brand of 3-in-1 instant coffee mix is the first export to Singapore. In 2001, White Cafe marketing commenced operations as the marketing arm for the Group’s beverage products. During the same year, the product line is expanded and includes different variations of the instant coffee mix. In addition, instant coffee mix has also expanded export to Hong Kong markets. In year 2002, White Cafe obtained a HALAL certification from the Islamic Religious Department of Perak for the Group’s beverages. This is the part of OLDTOWN Group’s intentions, which is to produce the beverages in accordance with the Islamic law. In the same year, OLDTOWN Group’s have successfully expanded to nationwide retail distribution of 3-in-1 instant coffee mix to cover East and West Malaysia through major hypermarkets and supermarkets. In 2003, OLDTOWN Group’s have also successfully commercialized the new blend of 3-in-1 instant milk tea for the retail market under the â€Å"OLDTOWN† brand name. In view of expanding OLDTOWN manufacturing activities, OLDTOWN Group’s incorporated Gongga Food in 2003 and commenced operations in 2004 manufacturing roasted coffee powder for the road services sector using the Group’s proprietary bean roasting process. OLDTOWN Group’s also distributed the roasted coffee powder to traditional coffee shops in Ipoh and other states in Malaysia. In addition to the food services sector, roasted coffee powder is also marketed to the retail sector under the â€Å"NANYANG† brand. In 2004, it also further penetrated the export markets for 3-in-1 instant coffee to cover the United States, Canada and United Kingdom and subsequently in 2005, Taiwan and Indonesia. In 2005, OLDTOWN Group’s expanded vertically into the food services sector by opening a chain of cafe outlets based on the traditional Ipoh coffee shop setting and ambience under the â€Å"OLTOWN WHITE COFFEE† brand name. This is part of the Group’s strategy of capitalizing and reinforcing on the â€Å"OLDTOWN WHITE COFFEE† brand in the food services industry. In the same year, Kopitiam Asian Pacific commenced operations in the licensing, supply of food, beverages and other item, and provision of management services to â€Å"OLDTOWN WHITE COFFEE† cafe outlet. Since the opening of the first â€Å"OLDTOWN WHITE COFFEE† cafe outlet in Ipoh in 2005, the chain of cafe outlets have expanded to reach 137 cafe outlets in Malaysia and Singapore as at 31 October 2009. This included fully and partially owned, and franchised cafe outlets. In 2005 and 2006, OLDTOWN Group’s has established the subsidiaries namely as Old Town Kopitiam, Old Town Kopitam Butterworth, Old Town Kopitiam Kuala Lumpur, Old Town Kopitiam Cheras, Conneczone to focus on operating cafe outlets in different areas and states within Malaysia. To support the cafe outlet business operations, their established the following subsidiaries as central food processing centres between year 2005 and 2007:  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Emperor’s Kitchen commenced operations in 2005;  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Esquire Chef commenced operations in 2007;   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Dynasty Confectionery commenced operations in 2007. In 2005, Gongga Food’s business activities also expanded to cater to the procurement of food items for â€Å"OLDTOWN WHITE COFFEE† cafe outlets. In the same year, Gongga Food also obtained a HALAL certification from the Islamic Religious Department of Perak for the production of its roasted coffee pow der. Furthermore, OLDTOWN Group’s has obtained a HACCP certification from BM TRADE Certification Ltd for the processing and manufacturing of beverage roducts. In 2006, the company also expanded the product export to Japan and China markets. In the same year, the company incorporated Dynasty Kitchen as a distribution centre, which commenced operations in 2007. During this year, group’s company also incorporated Oldtown Berhad, which will focus on investment holding and provision of management services pursuant to its listing on the Main Market of Bursa Securities. Subsequently the OLDTOWN Group’s also started exporting to Thailand and Philippines. In view of group’s company plans to expand more cafe outlet business operation to Singapore, OLDTOWN company also incorporated Oldtown Singapore in 2007 to provide management services, supply of food and beverage items to cafe outlets in Singapore. OTK Singapore commenced operations in 2008 with the launch of the first â€Å"OLDTOWN WHITE COFFEE† cafe outlet in Singapore. In 2008, the company of Dynasty Confectionery and Esquire Chef obtained HALAL certifications from the Islamic Religious Department of Perak for the processing of various foods. On other food-processing subsidiary, Emperor’s Kitchen obtained HALAL certification from the IFRC ASIA. To further affirm, OLDTOWN Group’s adherence to international food safety standard and White Cafe achieved ISO 22000:2005 certification and ISO 9001:2000 from BM TRADA Certification in 2008 in addition to GMP certification by the Department of Public Health, Ministry of Health Malaysia in the same year. Within 2008, OLDTOWN Group’s has expanded the product lines to include 3-in-1 instant coffee mix with cane sugar. In 2009, Gongga Food obtained a HACCP certification from BM TRADA Certification Ltd for the production of roasted coffee powder. OldTown White Coffee now exports its instant beverage mixes to more than 10 countries worldwide and plans to expand its cafe outlet network in the region. The group has an extensive chain of cafes in Malaysia via 194 outlets as of end Nov 2011, and also operates a few outlets that are open 24/7 in certain areas. This tally includes fully and partially owned outlets, franchise outlets and licensed outlets. How to cite History of Oldtown, Papers

Introduction to Asset Management

Question: Discuss about the Introduction to Asset Management. Answer: Introduction Asset is the backbone for efficient and effective working of every business organization. Assets are regarded as that part of the organization through which it would be able to generate profits or incomes in the future (Davis, 2016). Some examples of assets are property, land and building, furniture and fixtures and other tangible and intangible assets. Assets itself cannot help the company in generating incomes or in achieving the organizational goals (OFR, 2013). It needs to be maintained in all the respects and on regular basis from the degree of its physical condition to the degree of the best possible utilization the company is making out of it. Through this exercise company would be able to know whether the asset is in a condition of replacement or in a condition of further using for few years. Thus, managing the asset is very important for any organization (Brinkman, 2010). With this consideration, the report has been prepared by having deep study of the article relating to it and standards laid down by the British Institution have been discussed in detail known as PAS 55. This is further discussed with reference to the engineering systems and finally laid down how this standard has become the foundation for obtaining the ISO 55000 certification. With this objective, the report has been prepared detailing how far the research paper has contributed to enhance the knowledge and to help organization in managing the assets. Target Academic Community In the research paper, the academic community which has been targeted includes the British Institution of Standards, Abu Dhabi Quality and Conformity Council, ISO authorities, the executives and the UAE personnel. Each of the academic community has been given importance in the paper and laid down the reasons as to why each of them is necessary in the process of the asset management. At first the British Institution of Standards is responsible for preparing the standards for asset management. It consists of the guidelines to be followed by the organization. Second Abu Dhabi Quality and Conformity Council is the body which is wholly responsible for making the application of standards mandatory and compulsory and where necessary exemptions were given. At third comes the ISO authority which clearly states that once the asset management policy comes into force, the organization may go for the ISO 55000 certification. Then comes the executives of the organization who are held with the resp onsibility for effective and efficient working of the organization and they should be informed of the asset management policy and working of the company and deviations if any (IBM, 2009). In the last, the academic community is UAE personnel. It is very well mentioned that the UAE personnel have skills and capabilities to monitor the policies and thus they should be employed in the organizations and deployed with the necessary responsibilities. Thus, the above the communities over which the research paper has been framed. As per the recent case, Riyal Womens Hospital in Melbourne, Australia has undergone through the process of implementation and application of Asset Management which is known as PDCA and found it very beneficial for the organization and patients. (UGL, 2016). Thus, in view of this work, the target community will be the organization and customers of that organization. Research Problem The research has been revolved over the different problems and has simultaneously provided the solutions. The first research problem is the application of the standards for asset management as notified by the British institutions of standards. These standards define the management of an asset throughout the life cycle of an asset and how the system of asset management can be controlled. These standards are cumbersome to apply and therefore, the research paper has laid down the procedures as to how the organization can incorporate the asset management as part of the organizational goals and how it can be achieved (IIMM, 2011). The second research problem which has been discussed is how the organizations working in different sectors and industry and having different objectives and strategies can apply the same standards and form their asset management policy. Also the goals get automatically changed when the organization is located in different parts of the country. The aforesaid probl em has been resolved later by clarifying that the each and every organization may have its own policy for asset management depending upon objectives, strategies and locations but that too should be in accordance with the PAS 55. In the recent research conducted in New Zealand and Australian Electric Industry, the main research problem is the definition of asset management. Majority of the people do not understands as to what is included in the term of asset management. In all the discussion it is emphasized that asset management is an activity consisting of set of events to be carried out to realize the value of asset by considering the risks, threats, opportunities and benefits of assets (Fuller, 2015). PAS 55 in line with ISO 55000 is the basic model for the effectiveness of the asset management policy installed in the organization. It is because PAS 55 has described the practices in detail which ensures the best working of the asset and gives the best useful life to every asset. Asset may be tangible or intangible or human asset. It has outlined the stages through which each and every organization has to undergone to develop and efficient asset management plan. It includes four stages namely stage of planning, the stage of deploying, the stage of operating and maintaining and the stage of performance appraising to check whether the asset has reached the stage of retirement. For the companies having different objectives, different industries, different sectors and different locations have to follow four stages to achieve asset management namely mobilization, designing, development and the implementation of the policy and the sustainment of the policy and the assets. In this way mod el laid down by PAS 55 has been followed throughout the study. Thereafter, ISO 55000 has laid down that after having the defined asset management policy the company shall apply for ISO certification (Official Website, 2009). Therefore, these two models are relevant for the study. Data Collection and Analysis The research paper is the qualitative in its characteristic. In the research paper, the data has been collected from reliable sources. At first the reference has been given to the PAS 55 which has been obtained through the article on Asset management published in the year 2008. On the similar lines other data has been obtained on its guidelines, steps for formation for asset management policy and implementation thereof. Thus, for completing the research paper the data has been collected from secondary sources. It means that data has been collected from the books, journals and papers in which the asset management has been discussed. Data has not been collected through any of the primary source (IAM, 2009). The analysis of the data so collected and informed in the paper has been analyzed through the thematic approach. It is used where the analysis have to formed from the work and interpretations of other researchers. No quantitative data has been incorporated in the report and thus the analyses so made have been the qualitative one. Contibution of the Paper and Relevance to the Knowledge The research paper has contributed widely in the field of asset management both theoretically and practically. Theoretically, all the four stages of the asset management policy has been laid down describing each and every stage and described the asset management policy as the Plan Do Check Act (PGDCA) Cycle. The stage includes the planning, execution, operation and maintenance and evaluation. These are the predefined steps and along with these steps the asset management guidelines have been mentioned which includes the incorporation of legal framework in the policy and providing the status of asset and the asset management policy to the different stakeholders (Keller W,2009). On the practical aspects, the paper has also contributed to the wider extent. As these standards cannot be applied universally on uniform basis to each and every organization and has described the relaxation in the asset management policy provided the policy so formed shall be within the limits of the defined provisions of standards and the guidelines. In connection with the contribution, the paper has also imparted knowledge on the importance of the asset management. Many companies are still not aware of the guidelines and standards and adopt it as obligation. Through this paper the companies would be able to know the importance and will adopt it whole heartedly. Conclusion Having an asset management policy as the part of the main objective of an organization will always help the organization in making best use of its assets and also the generate profits or income for many years to come. PAS 55 standards has laid down the guidelines along with the steps of formation of asset management policy and its implementation. PAS 55 along with ISO 55000 has been detailed which will help the companies in adopting the same in easy and understandable manner. In order to conclude, asset management shall be pursued and followed by each and every company. References IBM (2009), Enabling the Benefits of PAS 55: The new standard for asset management in the Industry, available on https://www- 935.ibm.com/services/uk/bcs/pdf/090622_pas_55_white_paper_6815_tiw14035usen00_final.pdf accessed on 3/4/2017. Official Website, (2017), Asset Management Standards available on https://www.assetmanagementstandards.com/pas-55/ accessed on 3/4/2017 Keller W, (2009), PAS 55 Asset Management, available on https://www.mop.ir/portal/File/ShowFile.aspx?ID=840ee27f-1f65-4f15-a7df-2f25dfc83d51 accessed on 3/4/2017 IAM, (2009), PAS 55 Assessment Methodology available on https://theiam.org/system/files/privatedownloads/1/iampas55assessmethodologylr.pdf accessed on 3/4/2017. Davis R, (2016), An Introduction to Asset Management available on https://www.hvds.co.nz/files/docs/10695_iam_beginners_guide_low_9.pdfaccessed on 4/4/2017 IIMM, (2011), Asset Management Getting Started Guide available on https://assetmanagementsk.ca/+pub/document/pdfs/Asset%20Mgmt%20Getting%20Start ed%20Guide_web.pdf accessed on 4/4/2017. Brinkman R, (2010), Strategic Asset Management Framework, available on https://dpti.sa.gov.au/__data/assets/pdf_file/0007/51676/sam_framework.pdf accessed on 4/4/2017. OFR, (2013), Asset Management and Financial Stability, available on https://www.financialresearch.gov/reports/files/ofr_asset_management_and_financial_st Ability.pdf accessed on 4/4/2017, Fuller G, (2015), Benefits from the Application of Asset Management Standards in the Electric Industry, Engineers Australia. UGL,(2016),Applying the guidelines of BSI PAS 55 to Facility Management, available on https://reliabilityweb.com/articles/entry/applying_the_guidelines_of_bsi_pas_55_to_fac accessed on 07/04/2017

Product Centric vs Customers Centric free essay sample

Product Centric Vs Customers Centric: When defining customers centric; it has to be defined as customers intelligence and how can you WOW your customer. Today’s customers are more and more looking for unique solutions to their issues, problems, challenges and achieving their goals. How can this product benefit me? ; that question is asked many times when customers are finding products such as Cell Phones, Cars, Clothes and either houses. Today’s customers are expecting high performing value propositions geared to making their business or â€Å"lives† successful and are quick to search the myriad of competitors available when they do not perform as expected. So when you focus your product on your customers, your focusing on your customers and not you as a businesss in whole. Your focus on your customers is to gain beneficial business relationship and a well-satisfied customer. Your business will began to recognizes the sale is the natural result of forging a solid relationship built on listening and problem solving, not forcing someone to buy such as bad salesman. We will write a custom essay sample on Product Centric vs Customers Centric or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page It begins with building customer rapport and ends with a lasting business relationship ((http://www. mymarketingdept. com/customer-centric-marketing). People often confuse the method used to deliver a marketing message with a type of marketing that is only focus on its product. People and business Many people equate telemarketing, direct mail, print advertising, radio, TV, public relations, seminars, newsletters, audio and video presentations, email, and Web sites as marketing. These are not marketing approaches they are delivery methods used to distribute marketing messages. People can and do use all of these delivery methods to send various types of marketing messages. You can send a capabilities/capacities message, a consultative/informative message or a customer-centric message using any of these delivery methods. (not finish)

Article Summary Example

Article Summary Example Article Summary – Article Example Article Summary According to research studies by a group of economists, there is a close relationship between violence and the use of drugs (Benson 34). The use of drugs has become an international concern because of its effects on crime and violence. Some countries such as Mexico have made efforts to legalize drug trade in order to reduce its overall effects. Drug trade also has a number of implications on the economy. Drug trade has very high volumes of sales but there are minimal profits from such activities. This is because a large number of intermediaries are involved in the business hence reducing profit margins between individual businesses involved in the trade (Bruce 27). When trader can manage to be in business with low profits, they tend to operate by enlarging their bases and expanding business to make more sales. As a result, revenues realized by the respective countries are set to increase and result to economic developments (Bruce 27).Competition also tends to set in b ecause the market has minimum or no barriers to entry hence many people will be attracted to venture in drug trade Opinion polls conducted in the US and Mexico recorded that such countries would be well of if they had legalized the use of drugs. They argue that the legalization process would ensure that the country records high levels of GDP through taxation of the use of drugs. Research shows that if Mexico would legalize the use of drugs, then the country would be able to collect revenues close to what drug cartels collect (Benson 40). Benson, Bruce. Handbook on the Economics of Crime. Cheltenham: Elgar, 2010. pp. 23-145. Article Summary Example Article Summary – Article Example iPhones in a Foreign Market The paper summarizes the article ‘Britain turns its back on Android in favor of iOS’ posted in theTelegraph Media Group Limited by Rhiannon Williams on 7th January 2015. The article shows the expansion of the Apple’s market share in U.K. The article asserts that the market share for Apple’s Smartphone has grown rapidly in the recent years as compared to its competitor, Android (Williams 1). The article states that Apple has recorded its highest market share in Britains smartphone where it accounts for 42.5 % of all smartphone sales in U.K (Williams 1). The growth for Apple market share in foreign markets like Britain relates to its iOS operating system. The article shows how and why Britain consumers opted to buy iPhones instead of Android phones from Google leading to significant growth in iPhone sales (Williams 1).The article quotes a recent research done by Kantar WordPanelCom Tech Research Company that indicated Apple Company ’s sales as of November 2014 to be 23.8 % of smartphones sales in Britain, Germany, France, Italy, and Spain (Williams 1). Indeed, the article recognizes an increase in iPhone sales U.K in the last one year. The article attributes this to the introduction of iPhone 6 and iPhone 6 plus on September 2014 (Williams 1). The increase in brands and devices from different manufacturers allows U.K consumers to analyze different products before purchasing. The quality and features of iPhone 6 and iPhone 6 plus motivated U.K consumers to choose Apple Smartphones that increased Apple market share. The article notes that the introduction of iPhone 6 and iPhone 6 plus expanded Apple’s market shares in other foreign markets like China (Williams 1).Williams, Rhiannon. Britain turns its back on Android in favor of iOS. 7th January 2015. Web. 4th March 2015.

Article review Essay Example | Topics and Well Written Essays - 750 words - 2

Article review - Essay Example Examples of new media include but are not limited to the Internet, computer multimedia, and CD-ROMS. Television programs, books, and movies are not included in the new media until they allow digital interactivity. New media in general and the Internet in particular is the most important and frequently used source of information in the contemporary age because of many reasons; Availability of information is 24/7, there is a wide variety of sources of information including journal articles, blogs, and threads, Internet is one of the cheapest sources of information, and the content can be retrieved, used, and sent to the desired destination all at the same time. New media is frequently accused of many negative effects in our life in terms of obesity, wastage of time, and much more, which is not right. Saying that new media has had only negative effects on people is not only a very broad generalization of its effects, but also very reckless approach towards the analysis of its effects. C ritics accuse new media of spreading obesity among the teenagers and young adults whereas the real responsibility to keep themselves smart rests with the very teenagers and young adults. They need to manage their time better so that they do find time for some physical workout. Accusing new media of causing people to waste time is also wrong. Critics say that people spend hours and hours on social media websites, which breaks their connection with the physical world. This is so untrue! In fact, to much an extent, the activities people used to do in the physical world are now performed in the virtual world which actually saves their time. Before, people needed time to hang out with friends to socialize with them. Nowadays, all they need is a computer with an Internet connection to chat with their friends on daily basis. All the extra time wasted otherwise in going out is saved and may be put to positive use. New media is accused of causing social exclusion in people as they donâ€℠¢t find time to socialize with others. The reality is exactly the opposite of this. New media has actually served as a platform to promote social networking and relations. People make new friends and can chat with them 24/7 irrespective of the geographic distances. In his article, Andrew Keen says that Google is not our friend and the rationale he puts forth to support his opinion is that it is protruding too much into our life. Most of the literature that criticizes Internet for creating negative effects in our life plays with words. For example, Andrew Keen says in his article, â€Å"Having successfully become our personal librarian, Google now wants to be our personal oracle. It wants to learn all about us, know us better than we know ourselves, to transform itself from a search engine into a psychoanalyst's couch or a priest's confessional† (Keen, 2007). In thus sentence, Andrew Keen has projected Google as a noun, like it is a person who is manipulating our life. Google is just a search engine that cannot possibly want or learn like living beings do. If there are articles on Google that dictate us what to do throughout the day, it is our choice to read them or not, or even use the information in our everyday life after reading it. Michael Gerson says. â€Å"in the online world of Second Life, many people prefer to take the shape of

Borders Group Inc Essay Example | Topics and Well Written Essays - 750 words

Borders Group Inc - Essay Example The Borders Company facilitates online shopping through their website, Borders.com. This facility assists customers to get easy access to company’s products and services from any part of the globe any time. It mainly offers e-books through online shopping and it additionally offers a desktop e-Reader for computers, which would also suit many other applications. Similarly, Borders’ promotional tactics involve offers sent to customers as e-mails and text messages. The company gives great emphasis on collaborated operations because the firm believes that this practice would ensure organizational sustainability and further business expansion. For instance, the ‘Borders’ formed an agreement with Starbucks subsidiary Seattle’s Best Coffee so as to enhance its expansion activities. Another notable feature of the company is that Borders’ international expansion is based on franchising strategy. Likewise, diversification is also one of the main grand s trategies of ‘Borders’. Recently, in 2008, the company opened 14 stores nationwide that offer variety of electronic devices such as MP3 players and Sony Reader. 3. Long-term objectives It is evident that international expansion is set as Borders’ long term objective. The company has opened a large number of stores in different parts of the world namely in UK, Singapore, Malaysia, Oman, and Sharjah. The words of Borders group chief executive officer George Jones (cited in The Free Library) indicate that the company emphasizes on the superstore business because the management believes that superstore is the foundation of their strong brand. After a failure in global market, the firm... ‘Borders’ seems not to have employed this strategy so far. To illustrate, its online prices are always different from that of in-store prices and they are subject to changes without giving any prior notice (Borders). The company tends to charge an additional premium for this facility. Focus strategy involves concentration on narrow market segments in order to focus the interests of that segment (Marketing Plan). Grand strategy involves framing comprehensive plans to meet the major objectives of a firm by employing all available weapons such as ‘market, product, organizational development through acquisition, divestiture, diversification, joint ventures, and strategic alliances† (Grand strategy). The Borders Company facilitates online shopping through their website, Borders.com. This facility assists customers to get easy access to company’s products and services from any part of the globe any time. Long-term objectives It is evident that international expansion is set as Borders’ long term objective. The company has opened a large number of stores in different parts of the world namely in UK, Singapore, Malaysia, Oman, and Sharjah. The words of Borders group chief executive officer George Jones (cited in The Free Library) indicate that the company emphasizes on the superstore business because the management believes that superstore is the foundation of their strong brand. In addition, the firm frames wide ranges of marketing and promotional tactics in order to maintain brand loyalty.

The Saudi Arabian 10th Five-Year Development Plan from 2015-2020 Essay

The Saudi Arabian 10th Five-Year Development Plan from 2015-2020 - Essay Example From the report it is clear the tenth five years development plan mainly aims to strengthen the economy and promote economic growth, competitiveness and stability. The plan also focuses on enhancing the institutional reforms and increases the productivity and the efficiency of the state agencies. The construction industry output is expected to increase by 10.98%. The problem or the challenges related to the increase in population is likely to overcome by developing the housing and infrastructure facilities of the country or the nation. It also focuses on development and improvement of its tourism industry for decreasing its dependence on the oil sector for generating revenue in the economy. As the essay stresses the Gulf Cooperation Council aims to develop the cross border trade and reducing the rapid population growth. The minister for Atomic and Renewable energy announced that the total installation capacity is required to be increased by reducing the dependence on hydrocarbons and strengthening its relationship with China and other neighboring countries. An agreement was signed between the Chinese government and Saudi Arabia for increasing production and the peaceful utilization of the renewable and the nuclear energy. The railway master plan of Saudi Arabia focuses on the conceptual framework required for the long term development of the country’s passenger and improving the railway transport network. The investment in the tourism and travel sector of the country is likely to increase by more than 33.5 billion by the end of the year 2020.

Factors in Planning Health Interventions

Factors in Planning Health Interventions Identify, assess and discuss both direct and indirect impacts on health the following determinants have with regards to planning, implementation, and the evaluation of health interventions. Determinant factors Demographic distribution of populations Political values Religious beliefs Human values Ethnicity Traditions Numerous aspects unite collectedly in order to influence the wellbeing of a person and the society. There are factors that cosiderably affect the individuals by the conditions and the environment whether the individuals are healthy or not. These factors are the environment that we live in, our status in life, literacy, and our associations to the people that sorrounds us ( World Health Organization WHO, 2014). Determinants Factors a. Demographic distribution of populations Distribution of population is the number of people living in one place. Demography is focused on the analysis of the population size and structure, specifically in connection to its determinants, fertility, mortality and immigration. Demography has a lot of major issues in its root like global population growth, the challenges of population and the effect of different issues faced by the environment. This could also be rooted in their knowledge about the effect of their actions. Some places aren’t learned enough on the consequences they need to face in doing something. If the population size is big, lesser focus on each family will be given and any help wouldn’t be lend to them, which might result to poverty and hunger that will soon become an illness. The major reason for population changes, whether in an individual country or for the whole world, is the change in birth and death rates. Thebirth rateis the number of live babies born in a year for every 1000 people in t he total population.Death ratesare number of people dying per 1000 people. When birth rates are higher than death rates the population of an area will increase (InternetGeogrphy, 2014). b. Political value Political values are one of the determinants of health. Somehow, it can affect one’s health through their perspective. How they perceive the political values that are instilled to them could be one factor. It depends on the mind setting of the person, if they rely so much on the politics’ promises to create their lives (Levine, 2012). If they think the government can support their needs, which, in reality, is very rare, then their health might be at risk. One must understand the politics’ issue and how it runs in their country. And this belief may result to poverty/hunger, which later will cause illness to the people. Stress may be considered as one of the indirect impact of political values, stress is considered as one of the major causes of different illness recognized and some political values that are not met and was discouraged may lead into giving stress to people. c. Religious beliefs Religious belief doesn’t have that direct impact on their health but indirectly with the belief they stand in for their religion, it may become a determinant of their health. With respect to each all religions, each of it has their own belief and perspective in all aspects. Having a religious belief may have both positive and negatives impacts on health and morbidity. Some religion might consider one thing a bad habit while the other doesn’t even mind it. There are few who have cited several possible reasons basically related with lesser stress levels in a religious community. It has been found that going to church increases life expectancy (Hummer, Roger, Ellison, 1999) with a life expectancy at 20-83 years for often-regular attendees and 75 years for non-attendees. The result however does not necessarily mean that you can rely your life expectancy by the number of visits you have on churches thus it will help you with your health issue with consideration on the belie f they stand. People having strong faith were found to have lesser suicidal characters than those atheists. Another factor for this is the food that each religion is allowed to eat. There are foods that is not allowed in some religion which lead them into a healthier living and other religions which has no restrictions that leads to neglecting the right food to eat and eventually may cause illness. d. Human values Human values just like political values have an impact in people’s health. It is more of their disposition towards themselves. How they value and believe in something that might happen in them. This is more on their self-concept and the importance they give in themselves. Human values also consider factors like eating the right food for a long lasting living and eating or practicing whatever they have been used to without even considering their health. Also it can be rooted on what they have been used to since then, this will be the result of their health. There are different kinds of people who does not believe in taking a lot of care of them and might as well believe in destiny, which refutes the belief of having good health for a long lasting life, this may be considered as the indirect impact of human values. e. Ethnicity Ethnicity is one of the influential socio cultural factor that affects nutritional and health status. It has a vital part in determining culinary practices. The idea of ethnicity is the person’s culturally used practices that comes from its pith place which means, what has been practiced since they were born. Discoveries say that acculturation tends to show relevant differences in person’s health and dietary practices once they become acculturated to their culture (Wikipedia, 2014). This has something to do with how they deal with others who are within their ethnic group. It is what the people in the place they live in that has an effect of what they practice. This is one of the determinants of the health of people, their ethnicity that brings them to what are practicing until now because they have been used to. The state of their health might have something to relate with in their bloodline. f. Traditions Tradition refers to one’s belief that is being passed by their elders. It is their practices that has significance in the past and is still acknowledged until now. This has a great impact on one’s health. It is more on what practices or intake they have been used to since they were young and relatively, it may have an effect on their health later on. It is the summation of their cultural experiences is what somehow defines their health. With the continuous practices of these, surely it will have an impact on one’s health. This is with regard to their values of their elders, how they respect their culture. Indirectly, it has in impact on their health in a way that it defines their health in the present time. Reference World Health Organization WHO. (2014). The determinants of health. Retrieved November 25, 2014, from World Health Organization WHO: http://www.who.int/hia/evidence/doh/en/ InternetGeogrphy. (2014). Population Distribution . Retrieved November 2014, 2014, from InternetGeogrphy: http://www.geography.learnontheinternet.co.uk/topics/popn1.html Levine, S. (2012, July 13). Story: Political values Te ara. Retrieved November 26, 2014, from New Zealand politics and political values: http://www.teara.govt.nz/en/political-values/page-1 Hummer, R. A., Roger, R. G., Ellison, C. G. (1999). Religious involvement and U.S. adult mortality. Retrieved November 25, 2014, from PubMed: http://www.ncbi.nlm.nih.gov/pubmed/10332617 Wikipedia. (2014, May). Ethnicity and health. Retrieved November 26, 2014, from Wikipedia the free Encyclopedia: http://en.wikipedia.org/wiki/Ethnicity_and_health

Malcolm Barber Essay -- Religion, The Templars

The Christians were fortunate individuals in the Middle Ages; Christendom received its own religious military order to protect many Christians who undertook pilgrimages to Jerusalem after it (Jerusalem) had been overrun (5). This Western order endorsed and sanctioned by the Pope; and the papacy in general, was known as the Knights Templar. One of the Templars missions was to predominantly fight against the Moslems. The Moslems had been perceived as a polytheistic religion, that encompassed the worshipping of evil pagan Gods and a religion that encouraged illicit acts. This idea however is contrary to the true Islam; Islam is indeed a monotheistic religion that is categorized under Abrahamic religions as worshipping one God. The knights were affiliated with the crusades which remained popular within the 12th century (1). The Templars were respected within Western Christendom and; the order was given numerous economic advantages such as: land, the erection of fortifications and lucrati ve job positions such as bankers. Sadly, the Christians were expelled out of Palestine and the Templars ability to fulfill their duties to serve and protect Christians in the holy lands and elsewhere were in jeopardy. Support for the Templar Order and the crusaders caused an entity to fade. Furthermore, the respect level and the anticipation of wanting to become a crusader by individuals in Western Christendom declined drastically, disabling the order to fulfill its protective duties. Moreover, the King of France Philip IV who was deeply in debt; made it known that he was aware of the orders riches. He stated The Templars must make immense effort to relieve the acute financial problems of the reign through paying taxes, if they fail to do so I must f... ...were taking precedence or a two- century existence of the order did not merit much historical recording. Yet the wealth of information presented and the legal proceeding which climaxes this monograph are not only illuminating but articulated through print by Malcolm Barber. I would personally recommend this scholarly work to individuals who already have immense knowledge on the Templars and to individuals who are new to the whole idea of this historical event. This monograph, in my opinion, should be a course reader within post-secondary institutions that promote advanced education and Barber should be commended on tackling such a controversial subject. Because the crusades are a huge stain on how religion was advanced in the middle ages. Many ethnic groups suffered at the hands of Christendom however, this does not legate Barber’s wonderful scholarly work.

Chemistry 16 Lab Manual

Table of Contents Laboratory Safety and Laboratory Guidelines Common and Special Laboratory Equipment Materials and Other Requirements Common Laboratory Operations and Techniques Experiment 1 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 10 Properties of Matter Experiment 2 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 12 Chemical Changes Experiment 3 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 15 Classification of Matter Experiment 4 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢ € ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 17 Chemical Nomenclature: The Language of Chemistry Experiment 5 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 22 Water of HydrationExperiment 6 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 25 Gases Experiment 7 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 27 Oxygen Experiment 8 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 29 Heat and Volume Effects Experiment 9 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 31 Flame Test Experiment 10 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 32 Electromotive Series Experiment 11 †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 33 Oxidation – Reduction Reactions/ Some Aspects of Corrosion Experiment 12†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â ‚¬ ¦Ã¢â‚¬ ¦. 35 Colligative Properties GENERAL INSTRUCTIONS TO THE STUDENTS Apparatus Check each piece of apparatus, which you find in your locker from the duplicate list furnished to you by your instructor. Sign your name and submit to your instructor. The instructor signs the checklists and gives one copy to you for your safekeeping. ? Provide your locker with reliable padlock. You are responsible for all the apparatus issued to you. Towards the end of the semester you have to replace or give a deposit for any piece which you have lost or broken. If you have partners, each of you will share equally any loss or breakage of apparatus kept in your lockers and those orrowed from the stockroom. A clearance duly signed by the laboratory attendant is a requirement for taking the final examination. NO CLEARANCE, NO FINAL EXAMINATION. ? General apparatus, e. g. , Bunsen burner, thermometer, iron stand, clamps, etc. and special apparatus may be borrowed from the laboratory attendant. ? Borr owing of apparatus from the stockroom should be done during the first 30 minutes of the laboratory period. Materials and Other Requirements You have to provide yourself with the following materials and supplies besides the apparatus in the laboratory locker and the stockroom: Group |Individual | |Masking/paper tape |Tissue paper |Vials with cover (5 pcs) |Lab notebook | |Pair of scissors |Rags |Medicine dropper (3-5 pcs) |Lab manual | |Aspirator |Marking pens |Rubber tubing (2 ft) |Lab gown | |Wire gauze |Filter paper |Newspaper/scratch paper |Hand towel | |Wash bottle |Tray |Stirring rod |Mask | |Liquid detergent |Match |Corks/rubber stoppers |Goggles | |Test tube brush |Test tube holder |Padlock with keys | | Laboratory Work Laboratory work is an integral and essential part of any chemistry course. Chemistry is an experimental science – the compounds and reactions that are met in the lecture and classroom work has been discovered by experimental observation. The purpose of laboratory work is to provide an opportunity to observe the reality of compounds and reactions and to learn something of the operations and techniques. Safety is Top Priority ? All students are required to wear a lab gown during each experiment. This will be strictly enforced to avoid accidents caused by chemical spills and the like. Safety glasses, goggles or eye shields must be worn during the experiment. Contact lenses should not be worn. ? Shorts, skirts, sandals, slippers are not allowed in the laboratory. Secure long hair. ? Never taste, smell, or touch a chemical solution unless specifically directed to do so. Individual allergic or sensitivity responses to chemicals cannot be anticipated. If any chemical comes in contact with any other parts of your body or clothes, wash thoroughly with plenty of water. ? Procedures involving the liberation of volatile or toxic flammable materials shall be performed in a fume hood (e. g. , H2S, HCN). ? Never heat a flask or apparatus that is not opened to the atmosphere. Always pour waste acid, used KMnO4, organic solvents and solutions of heavy metals into their respective disposal jars, never into the sink. ? Replace the cover of every container immediately after removal of reagent. Deposit insoluble refuse such as pieces of paper, wood, glass cork in the waste basket, never into the sink or on the floor ? All accidents, injuries, breakages and spillages, no matter how minor, must be reported immediately to the instructor. ? Eating, drinking, smoking and playing inside the laboratory are strictly prohibited. Your hands may be contaminated with â€Å"unsafe† chemicals. ? Unauthorized experiments, including variations of those in the laboratory manual, are strictly prohibited.If your chemical intuition suggests further experimentation, consult with your instructor first. ? Unauthorized person(s) shall not be allowed in the laboratory. ? Maintain a wholesome, businesslike attitude. Horseplay and other careless ac ts are prohibited. ? The tabletop must be cleared of unnecessary materials. Put all bags and books in designated areas. ? Solids, water and other liquids spilled on your tabletop must be cleaned up as soon as possible ? No electronic equipment (laptops, ipod, mp3s, cellphone, etc. ) will be switched on while working in the lab. For Economic Reasons ? Always turn off the burner as soon as you are finished using it. Get only the amount of the reagent, which you need in the experiment. Use spatula for solid reagents and pipet for liquid ones. ? Never return any excess reagent to a bottle, unless specifically directed, to avoid contamination Before leaving the room, see to it that: ? Your locker is locked ? Your assigned water and/or gas outlet(s) are turned off ? The tabletop and the floor near your working area are clean and dry Collecting Data ? Record all data as they are being collected on the laboratory notebook. Data on scraps of paper (such as mass measurements in the balance ro om) will be confiscated. ? Record the data in ink as you perform the experiment. If a mistake is made in recording data, cross out the incorrect data entry with a single line (do not erase, white out or obliterate) and clearly enter the corrected data nearby. If a large section of data is deemed incorrect, write a short notation as to why the data are in error, place a single diagonal line across the data, and note where the correct data are recorded. Assessment: Evaluation of the students’ progress will be based on performance laboratory experiments; written reports of laboratory work and exams. The distribution is as follows: Exams35% Performance/ Attendance15% Written Laboratory report35% Pre-laboratory write-up/ Data notebook15%Laboratory Course Policies: 1. Arrive on time. The overview and description of the lab exercise, and the questions you need to answer in your written reports are usually given at the start of each session. These could be valuable to the success of you laboratory course. 2. Note all laboratory safety policies at all times. You are required to wear lab coats and safety glasses while in the lab. You must wear your protective gear at all times that any lab work is underway. Failure to observe safety precautions may result in your being dismissed from the laboratory class. 3. Request all chemicals and materials that you may need from the stock room at least 30 mins. head of the scheduled experiment. At this stage in your studies, you are expected to be able to work independently and responsibly. 4. Written reports of laboratory work are due at the start of the following lab session. Reports that are late will be penalized for each day of late submission(10% deduction per day). 5. Laboratory techniques, including your preparedness and participation in each laboratory activity, good note-keeping and ability to work well with your partner will be graded accordingly. 6. Read and plan you work before every laboratory class. Prepare a p re-laboratory write-up at the start of the lab period and prior to starting your laboratory work.You will not be allowed to perform the experiment without a pre-lab write up. The pre lab should include the following sections,: Experiment #, Title of Experiment, Date, Objectives of the Experiment’ Theoretical Framework, Materials and Methods, Expected Outcome. Sign and Date each pre-lab write-up. During the conduct of the experiment, record all your raw data in the same notebook. 7. Written Reports should be written on a short-sized bond paper and will have the following components: Name, Laboratory partner/s, Discussion of Results, Calculation/s(if any), Question/s, and Answer/s, Conclusion/s, Comment on you and your partner’s contribution towards the successful completion of the laboratory activity.Submit your lab report as a group, write your group number and experiment number as the subject of the email. COMMON LABORATORY OPERATIONS AND TECHNIQUES 1. BUNSEN BURNER A . Lighting the Burner a. Examine the parts of the Bunsen burner. Make a sketch of the burner, label and state the function of its parts. b. Attach the rubber tubing from the burner to the gas outlet on the lab bench. Bring the lighted match or striker up 4-5 cm above the barrel while opening the gas valve. c. Adjust the gas supply so as to have a flame of not more than 8 cm high. Close the air holes of the burner and observe the appearance of the flame. Hold the porcelain dish on this flame for a moment.What is deposited on the porcelain dish? d. Open the air holes until the flame is pale blue and has two or more distinct cones. A slight buzzing or roaring sound is characteristic of the hottest flame from the burner. Too much air may blow the flame out. Adjust the air intake until the roaring stops. What is the effect on the flame upon opening of the air holes? Does this type of flame have the same effect on the porcelain dish? Why? Spray powdered charcoal on the flame and note its effect. What makes the flame luminous? e. When the best adjustment is reached, three distinct cones are visible. Always use this kind of flame unless directed otherwise. f.Extinguish the flame when it is not being used, by closing the gas valve. B. Determining the Flame Temperatures a. Wet a piece of cardboard and hold it vertically through the center of the flame, with the lower end of the cardboard resting against the top of the burner. b. Remove the cardboard as soon as it shows a tendency to char. From the scorched portions note the relative temperature of the different parts of the flame. c. Draw a sketch of the flame to illustrate the different regions. 2. GLASS MANIPULATION A. Cutting a. Place the glass tubing flat on the table. Make a single scratch with a sharp triangular file 30cm from one end of the glass tubing. b.Grasp the glass tubing with both hands and place the thumbs one cm beside the scratch. Position the thumbs such that they are opposite the scratch. c. Break th e glass tubing by applying a gentle pressure. If it does not yield to gentle pressure, make a deeper scratch. d. The edges of the cut glass tubing are sharp and should be polished by rotating it at the non-luminous portion of the burner’s flame. This is to prevent the sharp edges of the glass from ruining corks and rubber tubing as well as cutting your fingers. B. Bending a. Take a piece of glass tubing about 30 cm long and hold it lengthwise over the flame. b. To bend the glass tubing properly, it must be heated uniformly over a length of 5 to 8 cm.This can be done using a flame spreader. c. Roll the tube back and forth until it has become quite soft. d. When it has become sufficiently soft, (i. e. , the glass tubing begins to take a pink color and sag gently) take it out of the flame. e. Bend quickly to the desired angle (30 ° or 90 °) and hold until it hardens. Try to get a good idea of the angle before you begin to work so that you may work rapidly and secure the desi red bend at once. f. Make one right angle and one 30O bent glass tubing. NOTE: Reheating and re-bending produces unsightly and often frail apparatus. C. Drawing Out a. Roll the center of a 10cm glass tube over the flame until it softens.The tube must be constantly rotated, to prevent the softened portion from sagging. b. Quickly remove it from the flame, and while holding it in a vertical position, gently pull the ends apart until the bore at the stretched portion is of the desired diameter. c. Cut to the desired nozzle length and fire polish the tip. D. Boring corks and rubber stoppers a. Select a cork that will fit into the mouth of the flask or test tube. b. Soften by rolling it between the tabletop and the palm of your hand. Select a sharp cork borer one size smaller than the glass tube that will be inserted. c. Place the cork on the desk and gently twist the borer in until it is halfway through the cork.Then withdraw the borer and finish the hole from the other end of the cork. d. Smoothen the hole in the cork with a round file. e. If the hole is too small, enlarge it by carefully filing with a round file. Only small adjustment should be made in this way. f. Rubber stoppers are bored in the same manner as mentioned. Select a very sharp borer one size larger than the hole to be made, and wet it with glycerin. Proceed as in boring the cork, but do not apply too much pressure. E. Inserting a glass tubing through a cork/rubber stopper NOTE: This operation is the most common cause of accidents in the laboratory. a. Wet the cork and the glass tubing with water. b.Place your hand on the tubing 2-3 cm away from the stopper. Protect your hand with a towel. c. Simultaneously twist and push the tubing slowly and carefully through the hole. 3. CLEANING OF GLASSWARE a. Clean all glassware with a soap or detergent solution. Use a brush if appropriate. b. Once the glassware is thoroughly cleaned, rinse several times with tap water and then once or twice with distilled w ater. c. Roll each rinse around the entire inner surface of the glass wall for a complete rinse. Discard each rinse through the delivery point of the vessel (e. g. , beaker spout). d. Invert the clean glassware on a clean paper towel or rubber mat to dry.Do not dry any glassware over direct flame. e. The glassware is clean if, following the final rinse, no water droplets adhere to the clean part of the glassware. f. If you must use a piece of glassware while it is still wet, rinse it with the solution to be used in the manner described in step 5c below. 4. TRANSFERRING OF LIQUIDS/SOLUTIONS a. When the liquid or solution is to be transferred from a reagent bottle, remove the glass stopper and hold it between the fingers of the hand used to grasp the reagent bottle. Never lay the glass stopper on the laboratory bench; impurities may be picked up and thus contaminate the liquid when the stopper is returned. b.To transfer a liquid from one vessel to another, hold a stirring rod against the lip of the vessel containing the liquid and pour the liquid down the stirring rod, which, in turn, should touch the inner wall of the receiving vessel. Return the glass stopper to the reagent bottle. c. Do not transfer more liquid than is needed for the experiment; do not return any excess liquid or unused liquid to the original reagent bottle. 5. MEASURING VOLUME OF LIQUID/SOLUTIONS a. The eye should always be level with the meniscus when you are making a reading. b. For measurements of clear or transparent liquids/solutions, the volume is read using the lower meniscus. For colored liquids/solutions, the upper meniscus is used. 6. HEATING A LIQUID/SOLUTION IN A TEST TUBE NOTE: Never fix the position of the flame at the base of the test tube and never point the test tube to anyone.The contents may be ejected violently if the test tube is not heated properly. a. The test tube should be less than one third full. Hold the test tube with a test tube holder at an angle of about 45? w ith the cool flame. A cool flame is a nonluminous flame supplied with a reduced amount of fuel. b. Move the test tube circularly in and out of the flame, heating from top to bottom. 7. PRECIPITATION a. Place 2 mL of sodium chloride solution in a test tube and slowly add 2 mL of silver nitrate solution. Write the balanced chemical equation for this reaction. NOTE: Be careful in handling silver nitrate solution. This solution may leave dark stains on skin, clothes or bench top. b.The solid formed is the precipitate and in this case, the slightly soluble silver chloride. Allow the precipitate to settle. c. Add a few drops of silver nitrate solution. Continue addition until no precipitation is observed. Divide the mixture into two portions and keep these for procedure 8. 8. SEPARATING A LIQUID FROM A SOLID A. Filtration a. Preparation of the filter paper to be used for gravity filtration: i. Cut out a 5† x 5† piece of filter paper. Fold the filter paper in exact halves and f old it again crosswise into two. ii. Make a small tear in one corner. This tear seals the paper against the inflow of air to the underside of the filter paper. iii.Open the folded paper so as to form a cone. iv. Place it in a funnel. Moisten it with a little water and press it against the top wall of the funnel to form a seal. The filter paper must always be smaller than the funnel. v. Support the funnel with a clamp or a funnel rack. b. Transfer the precipitate formed from the previous activity by carefully pouring the mixture, with the aid of a glass rod, into the filter paper. The liquid that passes through the liquid is called the filtrate. c. The tip of the funnel should touch the wall of the receiving beaker to reduce any splashing of the filtrate. d. Fill the bowl of the funnel until it is less than two-thirds full. e.Always keep the funnel stem full with the filtrate; the weight of the filtrate creates a slight suction on the filter in the funnel, thus this hastens the filtr ation process. f. Set aside both precipitate and filtrate for the next two activities. B. Decantation a. Transfer the precipitate retained in the filter paper into a beaker by rinsing the filter paper with jets of water from a wash bottle. b. Allow the solid to completely settle at the bottom of the vessel for several minutes. c. Transfer the liquid (called supernatant) into another container with the aid of a clean stirring rod. d. Do this slowly so as not to disturb the solid. Is this method applicable for the separation of all solid-liquid mixtures? Why? e. Rinse the precipitate with water and decant again. f. Which of the two separation methods (i. e. decantation or filtration) is better in isolating the precipitate? Why? E. Evaporation a. Pour the filtrate obtained from 8A into the evaporating dish. Place the evaporating dish on a wire-gauze supported on an iron ring clamped to an iron stand. Heat the dish over a cool flame. b. Continue heating until crystals begin to appear. C over the dish with a watch glass and allow the contents to cool. The solid remaining after evaporation is called the residue. What is the composition of the residue? 9. WEIGHING a. Weigh 0. 5 g of sand. Weighing may be done on platform balance or on an analytical balance. Rough weighing (to the nearest half gram), can be done on the platform balance.The analytical balance is used to get more accurate mass measurements. b. The properties of the substance will often determine the nature of the container where it is to be weighed. Use a weighing paper, a watch glass, a beaker, or some container to measure the mass of the chemicals. c. Do not place the chemicals directly on the balance pan. When in doubt as to what container to use, ask your instructor. TECHNIQUE IN HANDLING CHEMICALS d. A reagent is a substance which has a definite composition and a set of specific properties. The strong solutions are marked â€Å"concentrated† and the weak solutions, â€Å"dilute†. Some examples of the reagents are: Sulfuric acidH2SO4Ammonia NH3Hydrochloric AcidHClSodium hydroxide NaOH Acetic acidCH3COOHCalcium hydroxide Ca(OH)2 e. Before getting the desired amount, read the label twice to be sure it is the correct chemical at the right concentration. Transfer the needed amount into the receiving container. Once removed, these should never be returned. f. Do not take out more than what is needed to minimize waste. Do not return excess chemicals to the reagent bottle. In pouring reagents from bottles, don’t place the stopper on the table but hold it between your fingers. g. Never touch, taste or smell chemicals unless specifically directed to do so. ExPERIMENT Properties of MatterThis experiment presents several of the properties used to identify a sample of matter. The data gathered are interpreted by the use of some quantitative method. For safety and accuracy of results, the experimenter should make sure that all set-ups used should be properly checked for possible connection leaks and other errors. Stirring rod should be used to ensure uniform distribution of heat when heating liquids in an open container. The heat should also be regulated especially when heating closed set-ups. Laboratory techniques included are: measurement and transferring of liquids, weighing and heating of liquids and solids. MATERIALS AND APPARATUS 25 or 50-mL graduated cylinder |Thermometer |Cork and/or rubber stoppers | |50-mL distilling flask |Bunsen burner |Top loading balance | |250-mL beaker |Rubber tubings |Condenser | |25-mL Florence flask |Iron stand |Oil | |Test tube |Iron ring |Sulfur powder |2-3 iron clamps |Wire gauze |Isopropyl alcohol | | | |Lead pellets | PROCEDURE 1. BOILING POINT a) Measure 25 mL of isopropyl alcohol and record the initial temperature. 32 degrees a) Transfer it into a 50-mL distilling flask. Assemble the distillation set-up (consult the instructor). b) Warm the set-up gently with a Bunsen burner. Take temperature readings at one-minute time intervals until the liquid begins to boil, and two more minutes thereafter. c) Continue distilling until the flask is almost dry. Pour off the liquid still present in the flask. ) Transfer the distillate into the distilling flask and repeat the distillation process. e) Make a graph of your data with time on the x-axis and temperature on the y-axis. Compare the two graphs. f) Determine the boiling point of the liquid from the graphs. Look for the standard boiling point of isopropyl alcohol and get the % error of the boiling point obtained experimentally. 2. MELTING POINT a) Place about 1-gram of sulfur powder into a dry test tube. Clamp the test tube vertically into the oil bath. See to it that the solid is below the oil level. a) Hang the thermometer into the test tube such that it is covered by the solid and does not touch the sides and bottom of the test tube. ) Heat the oil bath gradually and take temperature readings at one-minute intervals until the solid has co mpletely liquefied, and two more minutes thereafter. c) Make a graph of your data with time on the x-axis and temperature on the y-axis. Determine the melting point of sulfur from the graph. Look for the standard melting point of sulfur and get the % error of the melting point obtained in the experiment. NOTE: Stir the oil bath so that the heat is uniformly distributed. 3. DENSITY OF A LIQUID a) Clean and dry the Florence flask. Weigh the dry flask and the rubber stopper on a top loading balance and record the mass. b) Fill the flask with distilled water until the liquid level is nearly to the brim.Put the stopper on the flask in order to drive all the air and excess water. Work the stopper gently into the flask so that it is firmly seated into position. c) Wipe any water on the outside of the flask and soak up all excess water from around the top of the stopper. d) Again, weigh the flask, which should be completely dry on the outside and full of water, and record the mass. e) Calcu late for the precise volume of the flask given the standard density of water, the temperature of the laboratory and the mass of water in the flask. f) Empty the flask, dry it and fill it with isopropyl alcohol. Stopper and dry the flask as you did when working with water.Record the weight of the flask filled isopropyl alcohol. g) Calculate the density of isopropyl alcohol and determine the % error using its standard density. 4. DENSITY OF A SOLID a) Use the same flask from the previous procedure for this part. Dry the flask completely and add small chunks of lead metal into the flask until it is about half full. b) Weigh the flask, with its stopper and the metal, and record the mass. Determine the mass of the metal in the flask. c) Fill the flask with water, leaving the metal in the flask, and then replace the stopper. Roll the metal around the flask to make sure that no air is trapped between the metal pieces. ) Refill the flask if necessary, and then weigh the dry stoppered flask full of water plus the metal sample. e) Compute for the density of the lead using the data obtained in this section and in part 3. Determine the density of the metal and compute for the % error. QUESTIONS 1. Interpret the graphs obtained in parts 1 and 2. What changes occur at the different regions of the graph? 2. What kind of properties are boiling point, melting point and density? 3. Which of these properties may be used to identify a sample of matter? Why? 4. Is one property sufficient to establish the density of the substance? 5. What is the identity of the distillate in Part 1? What is your basis?ExPERIMENT CHEMICAL CHANGES This experiment presents different types of chemical change. Some quantitative methods are included to emphasize proper data handling and interpretation of results. Formula writing and setting up of simple chemical equations are introduced. It is to be emphasized that the experimenter should always take note of any physical evidence that a chemical reaction is taking place. Such physical evidences include the formation of a precipitate, change in color of the solution or precipitate, evolution of a gas, and absorption or evolution of heat. ? Evolution of gas. This evolution may be quite rapid or it may be a â€Å"fizzing† sound. Appearance or Disappearance of precipitate. The nature of the precipitate is important; it may be crystalline, it may have color, it may merely cloud a solution. ? Evolution or Absorption of Heat. The reaction vessel becomes warm if the reaction is exothermic or cools if the reaction is endothermic. ? Change in color. A substance added to the system may cause a color change. Also included are the common laboratory operations such as measurement and transferring of liquids, precipitation, decantation, filtration, washing and transferring of precipitates, drying of solids, weighing, testing for acidity and basicity, and testing for completeness of a reaction.This experiment also emphasizes the need for gr adual mixing of reactants to make certain the maximum recovery of the product, and the importance of washing, to ensure the purity of the product. MATERIALS AND APPARATUS |50-mL graduated cylinder |Watch glass |Zinc dust | |250-mL beaker |Evaporating dish |0. 100 M Cu(NO3)2 | |250-mL Erlenmeyer flask |Pair of scissors |6. 00 M NH3 | |Funnel |Filter paper |6. 0 M NaOH | |Bunsen burner |Litmus paper |6. 00M HCl | |Stirring rod |Medicine Dropper |6. 00 M H2SO4 | PROCEDURE 1. Precipitation of Copper (II) hydroxide a) Measure 10-mL of 0. 100 M Cu(NO3)2 solution in a 250-mL beaker. a) Add dropwise with constant stirring about 0. 5 mL 6. 00 M NaOH solution. b) Place a piece of litmus paper on a dry watch glass and moisten it with the solution using a stirring rod. c) If it is not yet alkaline, add more NaOH. Record any change in color of the solution and describe the precipitate. 2.FORMATION OF COPPER (II) OXIDE a) Boil the contents of the beaker in part 1 for about 2 minutes with constant stirring to prevent â€Å"bumping† which may result in loss of material. The precipitate should change in color. b) Allow the copper (II) oxide precipitate to settle. Take note of the change in color of the precipitate. c) Test the supernate with a few drops of 6. 00M NaOH. If cloudiness is observed, continue the addition of the base until precipitation is complete. d) Heat the solution again with constant stirring, until all the precipitate has changed in color. Record the color changes that occur. What is the evidence of complete precipitation?What is the composition of the supernate? 3. CONVERSION OF COPPER (II) HYDROXIDE TO COPPER (II) SULFATE a. Let the precipitate settle until the supernate is clear. Decant the supernate through a filter paper into the Erlenmeyer flask. b. Wash the precipitate in the beaker using 10 mL of water. Let the precipitate settle and decant the wash water through the filter paper into the Erlenmeyer flask containing the filtrate. c. Repeat the process, so that the precipitate is washed a total of four times. d. Wash the same filter paper with about 1 mL 6. 00 M H2SO4 dropwise, catching the filtrate in the beaker containing copper (II) oxide precipitate. e.Rotate or stir the contents of the beaker to dissolve the solid. Add some more H2SO4 to dissolve the precipitate completely. f. Wash the filter paper again, this time with 10 mL water, catching the wash water in the same beaker. Record your observations. 4. REDUCTION OF Cu (II) IONS TO METALLIC COPPER a. To the solution (from 3), gradually add with constant stirring, about 1. 5 g zinc dust in minute amounts. CAUTION: Stir until no further reaction is observed before adding more zinc to make the solution colorless. b. Test for the completeness of the reaction by adding a few drops (1-2 drops) of the solution into a test tube containing about 1 mL of 6. 0 M NH3. If a colored solution is obtained, compare this with the control solution (prepare by adding a drop of 0. 100 M Cu(NO3)2 solution and 2 drops of NH3 to 1 mL water) and add more zinc into the solution with constant stirring. Repeat the process until the test with ammonia solution gives a colorless solution. c. Decant and discard the supernate in 4-b. Wash the precipitate in the beaker twice, each time using 10-mL portions of water. Decant and discard the wash water after each washing, taking care not to lose any solid. d. To the precipitate, add 10 mL water and 2 mL 6. 00 M HCl slowly and stir the contents until no more change is observed.Let the precipitate settle, decant and discard the supernate into a waste acid jar. e. Wash the precipitate twice, each time using 10-mL portions of water. Decant and discard the wash water. f. Transfer the entire solid in the beaker to a previous weighed filter paper. Use as little water as possible to wash out the solid from the beaker. Discard the filtrate and wash water. g. Fold the filter paper containing the solid and press this between pieces of dry f ilter paper to remove most of the water. Place the partially dried filter paper containing the solid on a watch glass, and air dry in your locker until the next period. Weigh the solid and the filter paper.Record all masses obtained. 5. OXIDATION OF COPPER a. Place a pinch of the weighed solid in an evaporating dish and heat the dish directly over a Bunsen burner. Observe and record your results. b. Submit the remaining solid, properly packaged and labeled, to your instructor. QUESTIONS 1. What type of process and/or chemical changes is observed in procedures 1-5? 2. Why must zinc be added very gradually to the solutions in procedure 4. a? 3. What is the purpose of the test using ammonia solution? 4. Why must HCl be added to the solid after the reaction with zinc dust is completed? 5. Why is it not advisable to dry the copper directly over a Bunsen flame? 6.Calculate the percent recovery in the experiment. Does your result refute the law of conservation of matter? Explain. ExPERIMEN T CLASSIFICATION OF MATTER Matter is classified according to its various properties and the type of changes it undergoes. There are two general types of matter, substances and mixtures. Substances are further subdivided into two types, elements and compounds. Mixtures are also of two kinds, homogeneous and heterogeneous. This experiment aims to differentiate several samples of matter. The samples are subjected to different conditions like temperature and solubility in some solvents. Chemical changes are illustrated by chemical equations. MATERIALS AND APPARATUS Beakers |Evaporating dish |Sugar crystals | |250-mL Erlenmeyer flask |Test tubes |Sodium chloride | |Funnel |Thermometer |Iodine Crystals | |Bunsen burner |Mortar and Pestle |Sulfur powder | |Glass tubing |Filter paper |Lead (II) nitrate | |Watch glass |Litmus paper |Magnesium ribbon | |Medicine dropper |Starch solution | | PROCEDURE 1. ubstances, homogeneous and heterogeneuos mixtures a. Measure out one gram of refined sugar in the balance. Dissolve the sample in 50 mL tap water. Compare the appearance of the solution with that of distilled water. Set up a simple distillation apparatus using the Erlenmeyer flask, thermometer and glass tubing. b. Distill the sugar solution and make a boiling point curve on the graphing paper. Collect the sugar solution and make a boiling point curve of the isopropyl alcohol (from experiment 1). Compare the boiling point curve of the sugar solution with that of the isopropyl alcohol. Which of the two is a substance and which is a mixture? c.Test for the solubility of the powdered sulfur in water. Do the same with sodium chloride. Weigh out 0. 5 g of each chemical on the analytical balance. d. Grind the two together in a mortar. Note the appearance of the mixture. With a hand lens, observe the mixture more closely. Can you distinguish the sulfur from the sodium chloride crystals? e. Transfer half of the mixture into a beaker containing about 15 mL of water. Stir thoroughl y then filter the resulting mixture. Identify the filtrate and the residue on the filter paper. f. Transfer the filtrate into an evaporating dish. Heat this to boiling. When the crystals begin to form, cover the dish with watch glass to prevent sputtering.When the crystals are almost dry, stop heating the dish. g. Heat the other half of the original mixture in an evaporating dish until melting is observed. Examine the resulting product closely using a hand lens. Can you now differentiate the two components? Test its solubility in water. Record all observations. 2. ELEMENTS AND COMPOUNDS a. Take two small crystals of iodine. Place one crystal inside the test tube and heat it gently. Compare the heated and the unheated crystals with respect to state, color, solubility in water and their behavior in starch solution. b. Take a pinch of lead nitrate crystals. Observe carefully and list down its observable physical properties.Heat it over a burner, gently at first, and then strongly after wards until no further change is observed. List down your observations. 3. METALS AND NON-METALS a. Clamp a medium-sized test tube horizontally. Take a piece of magnesium ribbon and insert one end into a 10-cm piece of glass tubing. b. Heat the magnesium ribbon. When it begins to burn, insert the burning magnesium ribbon into the test tube until the metal has burned completely. c. Dissolve the residue in 3-mL water. Test the acidity and basicity of the solution with litmus paper. Repeat using a pinch of sulfur. QUESTIONS 1. Write all chemical equations involved. 2. Does the appearance of the sugar solution differ from that of distilled water? 3.In part 1, which is an example of a homogeneous and heterogeneous mixture? How are the two types of mixtures differentiated? 4. What is the composition of the crystals formed after evaporation of the filtrate in 1. b? 5. Based on the results of part 1, how are substances different from mixtures? 6. Is there any evidence that would indicate a change in the identities of each of the substances heated? What are these evidences? 7. Differentiate the oxides of metals and non-metals. 8. From the results in part 2, define elements, compounds, metals and non-metal. 9. Iodine is liberated from seaweeds by the action of sulfuric acid on the ash of the seaweeds. How is it collected from the ashes? ExPERIMENTThe Language of Chemistry: Chemical Nomenclature Chemical Nomenclature is the system of naming substances. A systematic nomenclature was established by an organization of chemists called the International Union of Pure and Applied Chemistry (IUPAC). The standardized rules developed by the IUPAC are summarized below. 1. Binary Compounds 1. 1 Binary Compounds Containing Two Nonmetals If two nonmetals form a compound, the less electronegative is written first, followed by the more electronegative element. The same pattern is used in naming; the less electronegative is mentioned first, followed by the stem of the name of the more e lectronegative ending in –ide.When more than one compound can be formed from the combination of two elements, Greek prefixes are used to indicate the number of atoms of each element. |CO2 |carbon dioxide | |PCl3 |phosphorous trichloride | |Cl2O |Dichlorine mon(o)oxide* | |HCl |Hydrogen chloride | *this is omitted when the more electronegative element begins with a vowel Greek Prefix |Number |Greek Prefix |Number | |Mono- |1 | Hexa- |6 | | Di- |2 | Hepta- |7 | | Tri- |3 | Octa- |8 | | Tetra- |4 | Nona- |9 | | Penta- |5 | Deca- |10 | 1. 2 Binary Compounds Containing a Metal and a Nonmetal The metal is always written first, in both the name and the formula. As with all binary compounds, the nonmetal takes an –ide ending.There are two types that we must consider: metals with fixed (only one) oxidation number and those with variable (more than one) oxidation numbers. 1. 2. 1 Cations Monatomic ions cations retain their names as elements. The NH4+ ion, ammonium ion is named a s if it were a metal ion because of its saltlike properties. |Li+ |lithium ion | |Na+ |sodium ion | |Mg2+ |magnesium ion | |Al3+ |aluminum ion | 1. 2. 2 Monatomic AnionsMonatomic anions are named using their names as elements and the suffix –ide. |C4- |carbide | |N3- |nitride | |O2- |oxide | |H- |hydride | 1. 2. 3 Metals with Fixed Oxidation Numbers The metals with fixed oxidation numbers are the IA and IIA, Aluminum and Zinc. All other metals have variable oxidation numbers. Note that no prefixes are used. NaCl |Sodium chloride | |Na2S |Sodium sulfide | |AgBr |silver bromide | |Al2O3 |aluminum oxide | 1. 2. 4 Metals with Variable Oxidation Numbers In a binary compound of a metal of this type with a nonmetal, the oxidation number of the metal must be indicated in the name. There are two methods of doing this, the classical system and the Stock or Roman numeral system. 1. 2. 4. Classical System This system can only be used for metals having two oxidation states. An –ic ending is used for the metal with the highest oxidation state and an –ous ending is used for the lowest. Also, the Latin name is used for iron (ferric and ferrous), copper (cupric and cuprous), tin (stannic and stannous) and lead (plumbic or plumbous). The classical system does not indicate the actual oxidation state. 1. 2. 4. 2 Stock System or Roman Numeral System The actual oxidation state is designated by a Roman Numeral placed in parenthesis immediately following the name of the metal. This is useful especially if the metal has more than two oxidation states. Formula |Classical System |Stock System | |CuCl |Cuprous chloride |copper(I) chloride | |CuCl2 |Cupric chloride |copper(II) chloride | |FeCl2 |ferrous chloride |iron(II) chloride | |FeCl3 |ferric chloride |iron(III) chloride | 1. 3. Compounds Named Like Binary Compounds Few other compounds take an –ide ending, like binary compounds. These include the following: |OH- |hydroxide |O22- |peroxide | |CN- |cyanide | |NH2- |amide | |I3- |triiodide | |N3- |azide | 1. 4. Trivial Names Some common binary compounds are assigned trivial names that have been assigned arbitrarily. These are universally used that they are allowed by the IUPAC rules of nomenclature. H2O |water | |NH3 |ammonia | |PH3 |phosphine | |AsH3 |arsine | 1. 5. Binary Acids A binary compound composed of hydrogen with a more electronegative element can act as a binary acid in water solution. For acids of this types, the prefix hydro- is added, and then the –ide ending is replaced by –ic acid. HF |hydroflouric acid | |HCl |hydrochloric acid | |HBr |hydrobromic acid | |HI |hydroiodic acid | 2. Ternary and Higher Compounds 2. 1 Oxyacids and Salts Oxyacids are composed of a nonmetal with more than one oxidation state, along with hydrogen and oxygen. A salt of oxyacid is formed when one or more of the hydrogen ions of an acid is replaced by a cation. The prefix hypo-, is used to denote the lowest oxidation state of the non metal with the characteristic ending –ous and the prefix per- is used to denote the highest oxidation state with the ending –ic. For acids whose names end in –ous, the corresponding salt ends with the suffix –ite, and those whose names ends in –ic, the name of the salt ends in –ate. Acid |Oxyanion |Salt | |H2SO3 |sulfurous acid |SO32- |sulfite |Na2SO3 |sodium sulfite | |H2SO4 |sulfuric acid |SO42- |sulfate |Fe2SO4 |iron(II) sulfate | |HClO |hypochlorous acid |ClO- |hypochlorite |NaClO |sodium hypochlorite | |HClO2 |chlorous acid |ClO2- |chlorite |KClO2 |potassium chlorite | |HClO3 |chloric acid |ClO3- |chlorate |NaClO3 |sodium chlorate | |HClO4 |perchloric acid |ClO4- |perchlorate |NaClO4 |sodium perchlorate | 2. 2 Salts of Polyprotic Acids These types of salts are formed when one or more hydrogen ions in polyprotic acids or acids with more than one replaceable H+ ion (e. g. , H2S, H3PO4, H2SO4) is/are replaced by metal ions. In naming, the word hydrogen is added to the name of the oxyanion. |NaH2PO4 |sodium dihydrogenphosphate |Na2HPO4 |disodium hydrogenphosphate | |Na3PO4 |trisodium phosphate | |NaHS |sodium hydrogensulfide | EXERCISES 1. Name the following. a. FeI2___________________________________ b. I2___________________________________ c. FeCl3___________________________________ d. Fe2(SO4)3___________________________________ e. FeS___________________________________ f. NCl3___________________________________ g. H2CO3___________________________________ h. CaCO3___________________________________ i.Be2C___________________________________ j. SnSO4___________________________________ k. (NH4)2S___________________________________ l. N2O4___________________________________ 2. Write the correct chemical formula a. Barium chloride___________________ b. Stannous nitrate___________________ c. Stannic nitrate___________________ d. Aluminum carbide___________________ e. Magnesium phosphate___________________ f. Nitrogen dio xide___________________ g. Ammonium sulfate___________________ h. Barium carbonate___________________ i. Sodium carbonate___________________ j. Calcium hydrogen phosphate___________________ k. Disulfur dichloride___________________ 3. Complete the following table Formula |Name as acid |Formula of sodium |Name of salt | | | |salt | | |HNO3 | | | | |HNO2 | | | | |HBrO | | | | |HBrO2 | | | | |HBrO3 | |NaBrO3 | | |HBrO4 | | | | 4. Name the following as binary compounds or as salts from the anions of polyprotic or oxo acids. a. NaIO___________________________________ b. K2HPO4___________________________________ c. Na2SO3___________________________________ d. KMnO4___________________________________ e.BaSO3___________________________________ f. FeSO4___________________________________ g. HClO3___________________________________ h. Na2SO4___________________________________ i. Fe(NO3)3___________________________________ j. Ca(ClO2)2___________________________________ 5. The spaces below rep resent portions of some of the main groups and periods of the periodic table. In the proper squares, write the correct formulas for the chlorides, oxides and sulfates of the elements of Groups 1, 2 and 3, respectively. Likewise, write the formulas of the compounds of sodium, calcium and aluminum with the elements of Groups 6 and 7. Two of the squares have been completed as examples. Period |Group 1 |Group 2 |Group 3 |Group 6 |Group 7 | |2 | LiCl | |(Omit sulfate) | | | | |Li2O | | | | | | |Li2SO4 | | | | | |3 | | | |Na2S | | | | | | |CaS | | | | | | |Al2S3 | | |4 | | | | | | | | | | | | | | | | | | | | |5 | | | | | | | | | | | | | | | | | | | | ExPERIMENT WATER OF HYDRATION Most solid chemical compounds will contain some water if they have been exposed to the atmosphere for any length of time.In most cases the water is present in very small amounts, and is mere adsorbed on the surface of the crystals. Other solid compounds contain larger amounts of water that is chemically bound in the crystal. These compounds are usually ionic salts. The water that is present in these salts is called the water of hydration and is usually bound to the cations in the salt. In this experiment you will study some of the properties of hydrates. You will identify the hydrates in a group of compounds, observe the reversibility of the hydration reaction, and test some substances for efflorescence or deliquescence. Finally you will be asked to determine the amount of water lost by a sample of unknown hydrate on heating.From this amount, if given the formula or the molar mass of the anhydrous sample, you will be able to calculate the formula of the hydrate itself. MATERIALS AND APPARATUS |watch glass |iron ring |crucible tongs | |test tubes |iron stand |triangular clay | |Bunsen burner |crucible |desiccators | PROCEDURE 1. Identification of Hydrates. Place about 0. g of the compounds listed below in small, dry test tubes, one compound to a tube. Observe carefully the behavior of each c ompound when you heat it gently with a burner flame. If droplets of water condense on the cool upper walls of the test tube, this is evidence that the compound may be a hydrate. Note the nature and the color of the residue. Let the tube cool and try to dissolve the residue in a few cm3 of water, warming very gently if necessary. A true hydrate will tend to dissolve in water, producing a solution with a color very similar to that of the original hydrate. If the compound is a carbohydrate, it will give off water on heating and will tend to char.The solution of the residue in water will often be caramel colored. Nickel chloride Potassium chloride Sodium tetraborate (borax) Sucrose Potassium dichromate Barium chloride 2. Reversibility of Hydration. Gently heat a few crystals ~0. 3 g, of hydrated cobalt (II) chloride, CoCl2(6H2O, in an evaporating dish until the color change appears to be complete. Dissolve the residue in the evaporating dish in a few cm3 of water from your wash bottle. Heat the resulting solution to boiling (CAUTION! ), and carefully boil it to dryness. Note any color changes. Put the evaporating dish on the lab bench and let it cool. 3. Deliquescence and Efflorescence.Place a few crystals of each of the compounds listed below on separate watch glasses and put them next to the dish of CoCl2 prepared in Part B. Depending upon their composition and the relative humidity (amount of moistures in air), the samples may gradually either lose water of hydration to, or pick up water from, the air. They may also remain unaffected. Any changes in crystal structure, color, or appearance of wetness should be noted. Observe the samples occasionally during the rest of the laboratory period. Since the changes tend to occur slowly, your instructor may have you compare your samples with some that were set out in the laboratory a day or two earlier. Na2CO3(10H2O (washing soda) CaCl2KAl(SO4)2(12H2O (alum) CuSO4(5H2O 4. Percent Water in a Hydrate. Clean a porcelain cr ucible and its cover with 6 M HNO3. Any stains that are not removed by this treatment will not interfere with this experiment. Rinse the crucible and cover with distilled water. Put the crucible with its cover slightly ajar on a clay triangle and heat with a burner flame, gently at first and then to redness for about 2 minutes. Allow the crucible and cover to cool, and then weigh them to 0. 001 g on an analytical balance. Handle the crucible with clean crucible tongs. Obtain a sample of unknown hydrate from the stockroom and place about a gram of sample in the crucible.Weigh the crucible, cover, and sample on the balance. Put the crucible on the clay triangle, with the cover in an off-center position to allow the escape of water vapor. Heat again gently at first and then strongly, keeping the bottom of the crucible at red heat for about 10 minutes. Center the cover on the crucible and let it cool to room temperature. Weigh the cooled crucible along with its cover and contents. Exami ne the solid residue. Add water until the crucible is two thirds full and stir. Warm gently if the residue does not dissolve readily. Does the residue appear to be soluble in water? DATA AND OBSERVATIONS A. Identification of Hydrates |Water appears |Color of residue |Water soluble |Hydrate | |Nickel chloride | | | | | |Potassium chloride | | | | | |Sodium tetraborate | | | | | |Sucrose | | | | | |Potassium dichromate | | | | | |Barium chloride | | | | | B. Reversibility of Hydration Summarize your observations on CoCl2(6H2O. Is the dehydration and hydration of CoCl2 reversible? C. Deliquescence and Efflorescence |Observation |Conclusion | |Na2CO3(10H2O | | | |CaCl2 | | | |KAl(SO4)2(12H2O (alum) | | | |CuSO4(5H2O | | | D. Percent water in a Hydrate |Mass of crucible and cover | | |Mass of crucible, cover, and solid hydrate | | |Mass of crucible, cover, and residue | | Mass of solid hydrate | | |Mass of residue | | |Mass of water lost | | |Percentage of water in the unknown hydrate | | |Formula mass of anhydrous salt (if furnished) | | |Number of moles of water per mole of unknown hydrate | | ExPERIMENT GASESThis experiment illustrates three of the common gas laws: Boyle’s law, Charles and Gay-Lussac’s law and Graham’s law. Boyle’s law states that the volume, V, of a certain quantity of an ideal gas is inversely proportional to its pressure, P, at a given temperature and amount of gas. Charles’ and Gay-Lussac’s law states that the volume of a gas is directly proportional to the absolute temperature, at a certain pressure and amount of gas. Graham’s law describes that the velocity of an ideal gas is inversely proportional to the square root of its molar mass. The first two gas laws will be validated using plots of the properties involved. Graham’s law will be determined by comparing the velocities of two sample gases. MATERIALS AND APPARATUS Glass syringe |250 or 400-mL beaker |Black cardboard | |Syringe hol der |Iron stand |Ruler | |Thermometer |Iron ring |Graphing paper | |Glycerol |Wire gauze |Concentrated HCl | |Modeling clay |Glass tubing