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Chemistry, 7/e
Raymond Chang, Williams College
Chemistry in the Atmosphere

Internet Exercises

http://www.shsu.edu/~chemistry/ESC440/PSC.html
(http://www.shsu.edu/~chemistry/ESC440/PSC.html)

  1. Most of us know about the damaging effects of UV radiation and its main cause - the depletion of the ozone layer by harmful CFCs. Dr. Thomas G. Chasteen discusses the ozone's problem with polar stratospheric clouds at his site: http://www.shsu.edu/~chemistry/ESC440/PSC.html. After viewing the gif animation, answer the following:
    1. What negative effects do the polar stratospheric clouds have on the ozone?
    2. Write all the equations (including the net equation) for the catalytic destruction of ozone by chlorine radicals.
Air pollution
(http://www.soton.ac.uk/~engenvir/environment/air/air.pollution.html)

  1. Air pollution itself is a very broad term that covers many topics, including the topic of the last activity, ozone depletion. Now, lets focus on acid rain and smog. Go to: http://www.soton.ac.uk/~engenvir/environment/air/air.pollution.html. Read about both acid rain and smog under the subheadings, and then answer the following:
    1. Where does the majority of the acid rain come from in the North-Eastern United States, and in what percentages?
    2. Name two damaging effects acid rain poses to humans and the environment.
    3. Name two things you can do to reduce the acid gases caused by the greenhouse effect.
    4. How are the particulates of smog formed? Where does smog tend to form?
    5. In urban areas, what constitutes the particulates?
acid rain
(http://www.epa.gov/docs/acidrain/student/aciddef.html)

  1. The U.S. Environmental Protection Agency's webpage educates those who want to know more about environmental threats. Read their material on acid rain at http://www.epa.gov/docs/acidrain/student/aciddef.html, and answer the following.
    1. In burning fossil fuels, what compounds are present that rise into the atmosphere, responsible for acid rain?
    2. Write the reaction of sulfur dioxide gas with water in the atmosphere.
    3. What is dry deposition?








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