Question

How much quantity of electricity has to be passed through 200 ml of 0.5M $CuS{O}_4$ solution to completely deposit copper?

• A. $9.65\times {10}^{4}C$
• B. $1.93\times {10}^4$
• C. $3.86\times {10}^{5}C$
• D. $2.895\times {10}^{5}C$

Answer 1

The correct option is B $1.93\times {10}^4$

Moles of $CuS{O}_4=\frac{200\times 0.5}{1000}=0.1Mole$
Charge required to convert 0.1M $C{u}^{2+}$ to $Cu=2\times 96500\times 0.1=1.93\times {10}^4$