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MT1-4b-Sp07-key - Name GSI Chemistry 4B Spring 2007 KEY(50...

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Name__________________ GSI ____________________ 1 Chemistry 4B, Spring 2007 KEY February 12, 2007 (50 min., closed book) Name: GSI: SID: Section: Write your name and that of your GSI on all 6 pages of the exam. Equations, constants, and data are provided on the second page of the exam. In order to maximize your score on the exam: Do the questions you know how to do first. Go back and spend more time on the questions you find more challenging. Budget your time carefully -- don't spend too much time on one problem. Show all work for which you want credit and don't forget to include units. Question Page Points Score 1-true, false 3 24 2- balancing 3 12 3- galvanic cells 4 24 4- redox titration 5 22 5- concepts 6 18 Total 100
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Name__________________ GSI ____________________ 2 Useful Equations and Data Tables G ° = -RT ln K 101.3 J = 1 L atm R = 8.314 J / (mol K) X X X C A γ ] [ = 305 / ( 1 51 . 0 log 2 µ α µ γ + = z anode cathode cell E E E o o o = G o = − nFE cell o Q nF RT E E ln = o Q n E E log 05916 . 0 = o (at 298K) K E RT nF ln = o F = 96,485C/mol e- N A = 6.022 × 10 23 1 cal = 4.18 J 1 amp = 1 C/sec 1 Watt = 1 J/sec i p = (2.69 × 10 5 ) n 3 2 AD 1 2 c ν 1 2
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