6. A solution of is electrolysed for 965 seconds with a current of 20 A. If the current efficiency i — Electrochemistry Chemistry Question

💡 Solution & Explanation

Actual current $I_{eff} = 20 \times 0.50 = 10$ A. Total charge $Q = 10 \times 965 = 9650$ C. For $Cu^{2+} + 2e^- \rightarrow Cu$, equivalent weight = 63.5 / 2 = 31.75. Mass deposited = $\frac{E \times Q}{96500} = \frac{31.75 \times 9650}{96500} = 3.175$ g.