1.

Construct electric cells for the following reactions-(i) Fe + Cu2+ → Cu + Fe2+(ii) 2Fe3+ + 2Cl- → 2Fe2+ + Cl2

Answer»

(i) E° - cell = E° - cathode = 0.81 - (-2.36) = 3.17 V

(ii) E - cell = E°cell - (0.0591 V/2)log([Mg2+]/[Ag+])

= (3.17 V) - (0.0591 V/2)log{0.1/(0.0001)2}

= (3.17 V) - 10.2068 V = 2.9632 V



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