ELECTROLYSIS-QN19
During the electrolysis of a copper salt, 0.21g of copper was deposited in five minutes. If a current of 2A was passing through the solution, calculate the electrochemical equivalent of copper.
-
Soln:
Data:
Mass of copper, MCu = 0.21g
Current (I) = 2A
Time (t) = (5 × 60)
= 300sec
Where
Mass of copper, m = Zit
Z = m / I t
= 0.21g / 2A × 300sec
= 0.00035g/C
The electrochemical equivalent of copper was 0.00035g/C
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