Chemistry Practice Problems Faraday's Constant Practice Problems Solution: The MnO2 used in alkaline batteries can be produce...

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Solution: The MnO2 used in alkaline batteries can be produced by an electrochemical process of which one half-reaction isMn2+(aq) + 2H2O(l) ⟶ MnO2(s) + 4H+(aq) + 2e−If a current of 25.0 A is used, how many hours are needed to produce 1.00 kg of MnO  2? At which electrode is the MnO2 formed?

Problem

The MnO2 used in alkaline batteries can be produced by an electrochemical process of which one half-reaction is

Mn2+(aq) + 2H2O(l) ⟶ MnO2(s) + 4H+(aq) + 2e

If a current of 25.0 A is used, how many hours are needed to produce 1.00 kg of MnO  2? At which electrode is the MnO2 formed?