Question

Name the law or principle to which the following observations confirm :

When 9650 coulombs of electricity is passed through a solution of copper sulphate, 3.175 g of copper is deposited on the cathode (at. wt. of Cu = 63.5).

Answer 1

W = ZQ 

${\displaystyle =\frac{63.5}{2\times 96500}\times 9650}$

W = 3.175 g