Midterm Exam Study Guide Energy

Midterm Exam Study Guide Energy - 10 Why are some...

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Midterm Exam Study Guide – Spring 2012 The following are suggested topics for study. The exam may include questions dealing with these topics, as well as related topics not explicitly listed below. 1.) Basic concepts: element, compound, mixture, molecule, atom, isotope, allotrope, atomic number, mass number 2.) Conversion to scientific notation 3.) Why is CO toxic? Methods for reducing CO emission. 4.) Balancing chemical equations. 5.) Converting percent to ppm and vice versa. 6.) Converting wavelength to frequency, frequency to energy of photons (formulas will be given). 7.) Lewis dot structures (Periodic Table will be given). 8.) Why is loss of ozone a problem? Why does a small amount of CFC cause so much damage? Contrast with global warming: substances involved, description of problem, causes, consequences, remedies (see Table 3.3, p. 133). 9.) Simple applications of VSEPR – Know what the theory says, how to apply it.
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Unformatted text preview: 10.) Why are some vibrations infrared active, others inactive? Draw vibrations of CO 2 and name them. Which are IR active and why? 11.) Mechanism of the greenhouse effect (ranges of radiation emitted by the sun, earth; what is absorbed?) 12.) Global warming – evidence that it has occurred, changes in greenhouse gas content in the last 150 years – arguments for and against a human role. Provisions of the Kyoto protocol. 13.) Calculating molecular weights, numbers of moles, numbers of molecules. 14.) Simple chemical arithmetic, e.g.: How much CO 2 do I get from burning X g of C, percent composition. 15.) Calculating heat of reaction from bond energies – table will be given. 16.) Sources of energy in the US – which are fossil fuels? 17.) Why does ozone screen out longer wavelengths of radiation than O 2 ? 18.) Chapman cycle: Know which species and wavelengths involved, steps in the cycle....
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