Lecture17 - Redox Reaction? E°? Why the volume difference?...

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Electrolysis Read: 18.8 to 18.9 HW: P861 # 19, 89, 91, 93, 95, 101, 103, 105
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Electrolytic Cells Use electricity to force reactant-favored redox reactions to occur Sign of E°? Sign of ∆G°? Value of K°?
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Electrolysis of Molten NaCl Reduction ½ Rxn? Oxidation ½ Rxn? Redox Rxn? E° cell? ∆G°?
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Electrolysis of KI(aq) Oxidation ½ Rxn? Reduction ½ Rxn? E°? ∆G°?
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Predicting Electrolysis Products (1) NaBr(l) (2) KF(l) (3) NiCl 2 (l) (4) NaBr(aq) (5) KF(aq) (6) NiCl 2 (aq)
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Electrolysis of Water
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Unformatted text preview: Redox Reaction? E°? Why the volume difference? Electroplating • What half reaction occurs on Oscar? Counting Electrons • Au 3+ + 3 e- → Au • Cu 2+ + 2 e- → Cu • Ag + + e- → Ag • Current = Amperes = coulombs / sec amp → charge → mol e- → mol substance → mass • A 2.O amp current is passed through each solution for 1.5 hrs. Find the moles of metal deposited at each cathode. (1) Ag + (2) Cu +2 (3) Au +3...
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This note was uploaded on 08/26/2011 for the course CHEM 104 taught by Professor Quigley during the Spring '08 term at CUNY Hunter.

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Lecture17 - Redox Reaction? E°? Why the volume difference?...

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