Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12

# How Much Charge is Required for the Following Reductions: - Chemistry

How much charge is required for the following reductions: 1 mol of MnO_4^(-) to Mn2+.

#### Solution

MnO_4^(-) -> Mn^(2+)

ie Mn^(7+) + 5e^(-) -> Mn^(2+)

∴ Required charge = 5 F

= 5 × 96487 C

= 482435 C

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#### APPEARS IN

NCERT Class 12 Chemistry Textbook
Chapter 3 Electrochemistry
Q 12.3 | Page 92