Question

A current of 2 ampere is passed through copper and silver voltameters connected in series. If 1.08
gm silver (equivalent weight 108) is deposited on cathode in silver voltameter then find the amount
of copper deposited at cathode in copper voltameter. [Given: equivalent weight of Cu= 31.8)

Answer 1

According to Faraday's law of electrolysis, the amount of substance deposited m=zIt

where z= electrochemical equivalent of substance,

I= current t is the time.

Thus, rate of increases of weight (m/t) is proportional to z and I.