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Consider the following galvanic cell at 25°C.
Pt | Cr2+ (0.22 M), Cr3+ (2.1 M) || Co2+ (0.27 M) | Co
The overall reaction and equilibrium constant value are given below.
2 Cr2+(aq) + Co2+(aq) 2 Cr3+(aq) + Co(s) K = 2.79 107
Calculate the cell potential, , for this galvanic cell and ΔG for the cell reaction at these conditions.

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