Question

In the cell reaction:
4Cr^2+ +O2 +4H^+ = 4Cr^3+ +2H2O
Concentrations are:
[Cr^2+] = 0.1 M
[Cr^+3] = 0.082 M
[H^+] = 0.01 M
Find the partial pressure of O2 gas at equilibrium at 25°C.
E(Cr^3+/Cr^2+) = -0.41 V
E(O2/H2O) = 1.23 V

Answer 1

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