UNIT 2: QUANTITIES IN CHEMISTRY
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2.4 Investigation: Percentage Composition by Mass of Magnesium Oxide |
2.5 Alternative Exercise: Explore an Issue: Household Product Safety Testing |
2.6 Alternative Exercises |
2.8 Alternative Exercise: Case Study: Biomagnification |
2.9 Alternative Exercise: Case Study: Combustion and Carbon Monoxide Poisoning |
2.14 Alternative Exercise: Case Study: The Chemical Industry |
Section 2.4 Investigation p. 74 Percentage Composition by Mass of Magnesium Oxide (k) Research the educational requirements to become a gemologist, as well as some of the instruments used when working with gems. | |
Learn about Gemological Institute of America's diploma program in gemology and how you can earn the diploma through distance education and extension. | |
The International Society of Appraisers provides education, training, and organizational support to their members. | |
This page by the International Gem Society provides the list of instruments used by gemologists. Cost and utility of these instruments are also provided. | |
Section 2.5 Alternative Exercise p. 82 Explore an Issue: Household Product Safety Testing (a) In your group, research the issue: 'Animal tests such as the LD 50 and the Draize test should continue to be used in household product safety testing.' Search for information in newspapers, periodicals, CD-ROMs, and on the Internet. | |
This page, opposing the Draize test for cosmetics, is produced by the Group for the Education of Animal-Related Issues. A link is provided for a list of alternatives to animal testing. | |
This series of abstracts of research articles indicates that scientifically valid tests are available to replace the controversial Draize test for shampoo and other personal care products. | |
A Canadian research company, Partners in Research, gives the industry perspective of the benefits of animal testing. | |
Section 2.6 Alternative Exercise p. 84 Tech Connect: The Breathalyzer 5. Using print and electronic resources, research answers to the following questions about devices that measure BAC: (a) Who invented the first portable device for measuring BAC?When was this device invented? | |
Indiana University Department of Criminal Justice This site gives a brief biography of the inventor of the Breathalyzer. | |
(b) The Intoxilizer has been approved by the Canadian government for legally measuring BAC. How does the Intoxilizer differ from the Breathalyzer? | |
This site describes how the Intoxilizer works. | |
(c) Identify one other device that has been developed for measuring BAC. | |
The AlcoBlow ® handheld breath alcohol tester is an efficient and easy way to quickly gauge whether a person has consumed alcohol. | |
Section 2.6 Alternative Exercise p. 85 Explore an Issue: Lowering the Canadian BAC Limit (a) Research some of the studies and campaigns that have been released by organizations in Canada. Write brief summaries of the arguments for and against lowering the level of BAC in the Criminal Code of Canada from 0.08% W/V to 0.05% W/V. | |
The Canadian Council of Motor Transport Administrators has produced an extensive document on the issue of lowering the permissible BAC for drivers. | |
A report, produced for the Traffic Injury Research Foundation, looks into why lower BAC limits have not been more effective in reducing the alcohol - crash problem. | |
No discussion of drinking and driving in Canada would be complete without a look at the stance of Mothers Against Drunk Driving (MADD). Not surprisingly, they support a move to reduce the permissible BAC. | |
Section 2.8 Alternative Exercise p. 93 Case Study: Biomagnification Conduct library and/or Internet research to answer the following question. 6. The bioaccumulation of mercury has been well known as an environmental problem since the 1950s. (a) How does mercury enter the food chain, and how does it bioaccumulate? (b) Describe some of the human health effects of mercury poisoning. (c) What is methylmercury, and how does it contribute to the bioaccumulation of mercury in organisms? Distinguish methylmercury and total mercury. (d) What concentration of total mercury does Health Canada use as a guideline for determining whether commercial marine and freshwater fish are suitable for sale and consumption? How doesthe Canadian guideline compare to the guideline used in the United States? (e) Why does Health Canada suggest that the consumption of shark, swordfish, and fresh and frozen tuna by most people be restricted to no more than one meal per week? What types of individuals are restricted to one meal per month? (f) Why is canned tuna exempt from the consumption restrictions described in (e)? | |
The Canadian Food Inspection Agency gives clear advice on why to limit the quantities of salt-water fish consumed, and why canned tuna is exempt from this recommendation. | |
Section 2.9 Alternative Exercise p. 98 Case Study: Combustion and Carbon Monoxide Poisoning 9. Research answers to the following questions about carbon monoxide poisoning: (a) Electronic carbon monoxide detectors are used in homes to prevent carbon monoxide poisoning. List three common sources of carbon monoxide in a typical home. (b) How do common carbon monoxide detectors work? | |
Whether building anew, renovating, or just living in an existing home, all homeowners should be aware of the dangers of carbon monoxide, and what we can do to reduce those dangers. Canada Mortgage and Housing Corporation presents these suggestions. Scroll down to the section entitled 'How does a CO detector work?' for a brief explanation. | |
The answers that follow this True/False quiz give lots of information about how CO detectors operate. | |
The Underwriters' Laboratories of Canada present a comprehensive summary of information about carbon monoxide, its dangers, and its detection. | |
Section 2.14 Alternative Exercise p. 113 Case Study: The Chemical Industry 2. Research why sulfuric acid is the largest-volume industrial chemical produced in the world. List five of its major uses. | |
This brief introduction to sulfuric acid lists some of its many uses. | |
Uses of Sulfuric Acid | |
This commercial site gives many uses for one of the company's major products. | |
General Chemical is an industrial producer of sulfuric acid, among other chemicals. This Web site outlines what their main product is used for. | |
5.(a) Conduct research to identify a food product that is produced in a batch reactor. (b) Briefly describe the process and the reactor used. If possible, include a labelled diagram of the reactor. (c) How is the apparatus (a batch reactor ) used in the process (the production of a food) similar to a smaller version of the apparatus used in a school chemistry lab? | |
This site is the Web site of a food processing company. | |
This article describes the work done at Morgan Foods. | |
6. Conduct research to determine whether the modern Haber process is carried out by batch processing, continuous processing, or both. | |
This site describes the Haber process. | |
7. Chemical engineering technologists are employed by the chemical industry all over the world. Research answers to the following questions regarding the field of chemical engineering technology in Canada. (a) What do chemical engineering technologists do? (b) What are the educational requirements for becoming a chemical engineering technologist? (c) What personal qualities should a person have in order to be a successful chemical engineering technologist? (d) What are the job prospects for chemical engineering technologists over the next 5 years in Ontario? | |
Seneca provides a three-year program in Chemical Engineering Technology. This Web site has much of the information you will need. | |
Sheridan's School of Applied Computing and Engineering Sciences has a co-op program, and an opportunity to work on placement in Japan. | |
Human Resources and Development Canada gives sample job titles, main duties, and employment requirements. | |
This Job Futures page shows, in chart form, the average hourly wage, job prospects, and unemployment for chemical technologists and technicians. |