Consider the following reaction:

The quantity of electricity required in Faraday to reduce five moles of is .

Question

Consider the following reaction:

The quantity of electricity required in Faraday to reduce five moles of  is .

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Strategy:
 Faraday's law states that , where  is the number of moles reduced and  is the number of electrons per unit.

Step 1: Identify electron transfer
From the half-reaction:

For 1 mole of , 5 moles of electrons are required ().

Step 2: Calculate for 5 moles

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