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Consider the cell described below at 257 K: Sn | Sn2+ (0.811 M) || Pb2+ (0.955...

Consider the cell described below at 257 K:

Sn | Sn2+ (0.811 M) || Pb2+ (0.955 M) | Pb

Given EoPb2+→Pb = -0.131 V, EoSn2+→Sn = -0.143 V. Calculate the cell potential after the reaction has operated long enough for the Sn2+ to have changed by 0.399 mol/L.

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