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Nelson EducationSchoolChemistry 12 College Prep | ||||||||||||||||||||||||||||||||||||||||||||||||||
Web LinksUNIT 1: MATTER AND QUALITATIVE ANALYSIS
p. 18 5. When an X-ray is taken, the X-ray technician leaves the room, but the patient is exposed to the X-ray. • Why is it not safe for the
technician to be in the room when the X-ray is taken? This page provides information about X-ray sources and the precautions that must be taken to minimize exposure to X-rays. It also explains how time, distance, and shielding determine the magnitude of exposure. This page provides information about X-ray tests, how the test is performed, why the test is important, and when it is unsafe to undergo X-ray tests.
p. 20 (j) The second most abundant element in the universe is helium. Helium was discovered in 1868 using line spectroscopy. Describe how helium was discovered. Write a short paragraph, outlining your findings. This page describes the characteristics of helium, and how it was discovered. Also included is an article written for helium's hundredth anniversary.
This page describes helium; its history, sources, cost, properties, isotopes, and uses. p. 24 h) Flame emission spectroscopy is a technique that is used to identify the components of different types of matter. Using electronic and print resources, compile a list of situations in which flame emission spectroscopy is used. This page explains the chemistry behind flame emission spectroscopy and also includes an experiment for analyzing samples for small amounts of potassium using flame emission spectroscopy. Spectroscopy: Element Identification and Emission Spectra This lab assignment explains how flame emission spectroscopy works and reviews the definition of terms and properties of light. Also provided are links to Arizona University and Colorado State University's pages on emission spectra.
p. 25 Geological technicians help geologists, engineers, and geophysicists find and assess possible mineral and fuel resources. Geological technicians make observations, collect and analyze rock samples, and record information. They use a wide variety of instruments (such as UV, visible, atomic absorption, and flame emission spectroscopes) to test for the presence and composition of a mineral in a rock sample.
This page describes Fleming College's two-year Geological Technician program, the courses offered, the admission requirements, and the career opportunities available to graduates. Career Matters-Geotechnical Engineering Technologists and Technicians This site outlines the job description, required education, specific duties, and possible career opportunities for geotechnical engineering technologists and technicians. It also provides a link that lists recommended high school courses students should take to prepare them for these careers.
Case Study Questions p. 26 5. One of the most important uses of flame emission spectroscopy is to detect the presence of sodium and potassium, particularly in biological fluids such as urine. Sodium and potassium ions in your body affect your electrolyte balance.
The Analyst: Test Electrolytes, Serum This page describes electrolytes, such as sodium, calcium, potassium and magnesium, and their functions in the body. Ions: The Body's Electrical Energy Source This page explains the importance of ions in creating electrical energy within our bodies. Learn about the roles of sodium and potassium in the nervous and muscular systems.
p. 27 5. Obtain a $20 bill. Identify
as many security features as possible. What other qualities distinguish
genuine currency from counterfeit currency?
This Bank of Canada webpage shows all the security features of the newest Canadian bills. Click on the different parts of the bill to learn more about each feature.
6. What steps are retailers instructed to follow when they receive money that they suspect is counterfeit? Bank of Canada: Check to Protect This document instructs retailers on how to identify counterfeit bills and what to do once they receive money they suspect to be counterfeit.
p. 28 Fair Access Statement: Ontarians should have the right to choose faster access to MRI and better treatment through personal funding. In groups, research the issue of fair access to MRIs. Using up-to-date information, decide whether you agree or disagree with the statement. Prepare a position paper, in point form, to support your position. If your group disagrees with the statement, suggest some alternative strategies to meet the health-care needs of Ontarians. Search for information in periodicals and newspapers, and on the Internet. As a group, present your view to your classmates.
Private health clinics should go This report discusses the state of Canada's public health system and the controversy behind private clinics offering MRI scans or minor surgery. Links to several other related articles are also provided.
Romanow commission to recommend curbs on private MRI clinics This article reports on Romanow's commission to curb the growing numbers of private MRI and other medical imaging clinics in Canada.
p. 35 (a) Design an experiment to investigate
the conductivity (b) Research the conductivity of molten (liquid) ionic compounds.
Determining Physical Properties This site describes the physical properties of various substances. It contrasts the electrical conductivity of solid, pure liquids, and aqueous solutions of compounds.
The introduction to this lab describes the properties of ionic compounds, particularly the electrical conductivity of compounds of different states. The experiment described uses a conductivity detector to test the ability of various samples to conduct electricity.
p. 53 9. Catalytic converters in automobiles are used to decompose nitrogen monoxide, NO (g) . • Predict the products of this decomposition reaction. • Research how a catalytic converter functions in an automobile and why it is effective for reducing air pollution This page explains how a catalytic converter works and how it is used to reduce pollutants produced by car engines. What is a catalytic converter and how does it work? This page describes what a catalytic converter is and how the device works to convert harmful compounds, such as hydrocarbons, carbon monoxide, and nitrogen oxides. Also included are links to pages and articles about catalytic converters. 10. Most metals are found in nature as compounds and ores rather than pure elements. The most common types of metal ores are oxides, sulfides, halides, carbonates, sulfates, and silicates. Choose a metal, and answer the following questions.
• In what form is this metal most often found in nature? • How is this metal extracted and purified? • What types of reactions are used to purify it? • What environmental concerns are associated with its purification? This page describes the procedures involved in extracting and purifying iron, aluminum, copper, and zinc from their respective compounds and ores. Also provided are details on the reactivity series of metals and its importance in the extraction process.
This page provides a list of metals and the ores or minerals associated with each metal. This report describes the many environmental stressors brought on by technological advancements in the extraction and purification of metals from ores, and the effects of these chemical contaminants on individual organisms, populations, and ecosystems. Also included is a list of examples of sites where mining and mineral exploitation have affected U.S. biological diversity and resources.
p. 62 • Some pollutants in natural waters, such as heavy metals and organic compounds, are classified as having low solubility. What are the origins of these pollutants in natural waters? If these pollutants are low-solubility compounds, why are they a problem? This page describes the main groups of pollutants that affect water bodies and the sources of these surface water pollutants. Organic material and heavy metals are described specifically and their effects on the environment and human health are also discussed. Polychlorinated Biphenyls (PCBs)-Environmental Implications This newsletter from the Central Pollution Control Board describes the effects of PCBs on aquatic and terrestrial organisms.
p. 73 31. The production and circulation of counterfeit money has increased dramatically over the last decade. Many governments, including the governments of Canada and the United States, have redesigned their currency to make it more difficult to counterfeit. Detection devices in stores now allow merchants to test for counterfeit money. Research the measures that are used to prevent the production of American counterfeit currency, and the measures that are used to detect it. Compare these measures with the measures that are used to prevent the counterfeiting of Canadian currency. Summarize your findings in paragraph form. The Currency Education Program View this multimedia presentation on the Currency Education Program developed by Bank of Canada. It discusses the various security features found on the new $5 and $10 bills, as well as the Birds of Canada Series $20, $50, and $100 bills. A summary of the security features found in American bills allows you to compare and contrast them with Canadian bills. Detection devices are also described.
This site explains how to spot a counterfeit bill using different detection devices. Security features built into notes of various currencies are described in detail. This Bank of Canada site describes how the Canadian Journey Series uses technological advances in bank note production to incorporate new security features into Canada's paper currency.
This page explains how Westminster International Ltd. has been able to provide fraud and counterfeit defense services for over 50 years. Pictures and descriptions of common ultraviolet detection devices are provided.
32. Currently, in Ontario, there is a shortage of medical MRI technologists. The increasing demand for MRI by patients and doctors, together with the low number of qualified individuals who can perform MRI procedures, points to a healthy job market for medical MRI technologists. Research where MRI technologist programs are offered in the province, and the duration of the program. Present your findings in paragraph form. Career Matters-Medical Radiation Technologists This site outlines the job description, required education, specific duties, and possible career opportunities for medical radiation technologists. It also provides a link that lists recommended high school courses students should take to prepare them for this career. Magnetic Resonance Imaging and Spectroscopy This page describes the advanced diploma program in magnetic resonance imaging and spectroscopy offered by Red River Community College in conjunction with the National Research Council's Institute for Biodiagnostics. This program is designed for qualified technologists in radiography, nuclear medicine, or radiation therapy. Mohawk College-Medical Imaging Technologist This page allows you to choose from a list of programs offered by Mohawk College, including the three-year diploma program in medical radiation technology and ultrasonography. Also listed are admission requirements and courses offered by the department. Confederation College-Medical Radiation Technology This page describes Confederation College's seven-semester diploma program in medical radiation technology. It also uses the admission requirements, program of study, and employment opportunities for graduates.
Work Futures-Biological Technologists and Technicians This site contains the occupational profile of biological technologists and technicians, including nature of work, main duties, education and training, work conditions, and employment trends and projected demands.
33. Laundry detergents give better results when they are used with soft water rather than hard water. Today, many laundry detergents contain chemicals called zeolites, which soften hard water. Research the difference between soft water and hard water. Also research how zeolites work to soften water. Write a paragraph to summarize your findings. This page describes in detail the structure and properties of zeolites. Find out how the physical and chemical properties of zeolites help to explain how they work to soften water. Water Quality & Laundry Problems This page explains the concept of water hardness and how it is measured. It also describes three ways in which you can control water hardness when doing laundry.
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