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Question

How many coulombs required to convert 1 mole of H2O to O2?

A
9.65×104C
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B
4.825×105C
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C
1.93×105C
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D
1.93×104C
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Solution

The correct option is C 1.93×105C
Oxidation of H2O to O2 is
2H2O=4H++O2+4e
Oxidation of 2 mole of water requires
= 96500 × 4C
Oxidation of 1 mole of water requires
=96500×42=1.93×105C

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