ElectrochemistryHard
Question
A current of 0.1A was passed for 2hr through a solution of cuprocyanide and 0.3745 g of copper was deposited on the cathode. Calculate the current efficiency for the copper deposition. (Cu - 63.5)
Options
A.79%
B.39.5 %
C.63.25%
D.63.5%
Solution
m (theoretical) = 
= 0.4738 g
∴ % efficiency =
× 100 = 79 %
= 0.4738 g∴ % efficiency =
× 100 = 79 % Create a free account to view solution
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