12- An electrochemical cell is composed of pure copper and pure cadmium electrodes immersed in solutions of their respective divalent ions. For a 6.5 x 102 M concentration of Cd²+, the cadmium electrode is oxidized, yielding a cell potential of 0.775 V. Calculate the concentration 2+ of Cu ions if the temperature is 25°C. Electrode Reaction Au³+ + 3e - Au O₂ + 4H+ 4e¯ P₁2+ + 2e Ag+ e Fe³+ + e O₂ + 2H₂O + 4e4(OH™) Cu 2H + 2e H₂ Pb²+ + 2e - Pb Sn²+ + 2e -> Sn Ni²+ + 2e →→→ Ni Co²+ + 2e Co Cd²+ + 2e Cd 2H₂O Pt Ag Fe²+ Cu²+ + 2e → Standard Electrode Potential, V° (V) +1.420 +1.229 ~+1.2 +0.800 +0.771 +0.401 +0.340 0.000 -0.126 -0.136 -0.250 -0.277 -0.403
12- An electrochemical cell is composed of pure copper and pure cadmium electrodes immersed in solutions of their respective divalent ions. For a 6.5 x 102 M concentration of Cd²+, the cadmium electrode is oxidized, yielding a cell potential of 0.775 V. Calculate the concentration 2+ of Cu ions if the temperature is 25°C. Electrode Reaction Au³+ + 3e - Au O₂ + 4H+ 4e¯ P₁2+ + 2e Ag+ e Fe³+ + e O₂ + 2H₂O + 4e4(OH™) Cu 2H + 2e H₂ Pb²+ + 2e - Pb Sn²+ + 2e -> Sn Ni²+ + 2e →→→ Ni Co²+ + 2e Co Cd²+ + 2e Cd 2H₂O Pt Ag Fe²+ Cu²+ + 2e → Standard Electrode Potential, V° (V) +1.420 +1.229 ~+1.2 +0.800 +0.771 +0.401 +0.340 0.000 -0.126 -0.136 -0.250 -0.277 -0.403
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 86E: An electrochemical cell consists of a silver metal electrode immersed in a solution with [Ag+] = 1.0...
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