Question

A 100w , 220v incandescent lamp is connected in series with an electrolytic cell containing copper sulphate solution.what wt.if copper will be deposited by a current flowing for 5 hours ? (At.wt.=63.54).

Answer 1

Answer:

Explanation:

The other Cu electrode is connected to the positive terminal of the D.C. Power Supply. When current is applied to the electrolysis cell copper(II) ions in solution are reduced to copper atoms at the cathode. Copper atoms on the anode are oxidized to copper(II) ions. The cathode gains mass, the anode looses mass.

Answer =2.694 g  

Solution of the question:  

Current=power /Voltage=100/220 ampere =5/11 ampere.

Question of this answer in ampere because current always shown in ampere. Or you can also write the symbol of ampere.