105bpracticeexam4key

105bpracticeexam4key - Chemistry 105 B Practice Exam 4...

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1 Chemistry 105 B PLEASE PRINT YOUR NAME IN BLOCK LETTERS Practice Exam 4 Name: ______________________________ 08/03/09 Last 4 Digits of USC ID:___ ___ ___ ___ Dr. Soshanna Potter Lab TA’s Name: ___________________________ Question Points Score Grader 1 2 3 4 5 6 7 8 9 10 Total 100 Please Sign Below: I certify that I have observed all the rules of Academic Integrity while taking this examination. Signature: _______________________________________________________________ Instructions: 1. You must show work to receive credit. 2. Please put your answers in the boxes when provided. 3. If necessary, please continue your solutions on the back of the preceding page (facing you). 4. You MUST submit all pages to the proctors, including the periodic table page. Put your name onto the periodic table page in the space provided. 5. You MUST use black or blue ink in order to be eligible for any regrades. (No pencil, no whiteout, no erasable ink.) 6. There are 10 problems on 8 pages. Please count them before you begin. A periodic table and useful equations can be found on the last page. First Letter of last Name
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2 1. (12 pts) i. Consider the following reduction potentials: Cu 2+ + 2e - Cu, +0.34 V Ag + + e - Ag, +0.80 V Fe 2+ + 2e - Fe, -0.44 V Zn 2+ + 2e - Zn, -0.76 V Br 2 +2e - 2 Br - , +1.09 V Ce 4+ + e - Ce 3+ , +1.70 V Which reaction will be spontaneous in aqueous solution under standard conditions given
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105bpracticeexam4key - Chemistry 105 B Practice Exam 4...

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