200REV2fa08

200REV2fa08 - Chemistry 200 Exam 2 Review Problems NOTE:...

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Chemistry 200 Exam 2 Review Problems NOTE: These are just some of the problem types that will appear on Exam II. Review your quizzes and homework also. I will provide the activity series. You should know solubility rules 1-3 and any equations we have discussed (the Bohr equation will be provided). I will also provide any necessary constants. Exam covers material in textbook sections 3.5 (only material not covered in exam 1), 4.1 – 4.6, 6.1 – 6.2, 7.1 – 7.4, 8.1 – 8.5. 1) What is the frequency of light associated with a photon of energy equal to 7.26 x 10 - 19 J? 2) What is the wavelength of the radiation described in 1) ? 3) a) What is the photoelectric effect? b) What conclusions did Einstein draw from the photoelectric effect? 4) The energies of electrons in an atom are said to be quantized. Explain what this means. 5) Write the ground state electron configurations for the following: a) Mg b) Zn c) O 6) Write the electron configurations for the following using noble gas core notation: a) Na b) S c) I 7 ) Given: N 2 (g) + 3H 2 (g) 2NH 3 (g) ΔH = -92 kJ 92 kJ is the quantity of heat which is: a. gained from the surroundings when 1 mol of ammonia is formed. b. gained from the surroundings when 2 mol of ammonia are formed. c. lost to the surroundings when 1 mol of ammonia is formed. d. lost to the surroundings when 2 mol of ammonia are formed. e. none of the above.
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200REV2fa08 - Chemistry 200 Exam 2 Review Problems NOTE:...

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