Question

Consider the half reactions below. Cu 2+ (aq) + 2 e- -----> Cu (s) Eo =...

Consider the half reactions below. Cu 2+ (aq) + 2 e- -----> Cu (s) Eo = 0.34 V MnO4 - (aq) + 4 H+ (aq) + 3 e- -----> MnO2 (s) + 2 H2O (l) Eo = 1.68 V

A. What is the standard cell potential for a voltaic cell comprised of these two half reactions?

B. What is the equilibrium constant for this reaction at 25 oC?

C. How is the magnitude of the equilibrium constant consistent with a voltaic cell?

D. What is the cell potential for the concentrations below? [MnO4-]o = 2.0 M; [Cu2+]o = 0.010 M; [H+]o = 1.0 M

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