Question

A cell is prepared by dipping a copper rod in 1M Cuso, solution and a
nickel rod in 1M NISo, solution. The standard reduction potentials are
E°Cu/Cu? = 0.34V, E'Ni/Ni2 = -0.25V
(a) Write cell reaction.
(b) How cell is represented
(c) Calculate emf of the Cell.
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Answer 1

c is the answer how it is useful.