What quantity of electricity will liberate 0.125 mole of oxygen molecules during the electrolysis of dilute sodium chloride solution?
[ F = 96 5000 C mol-1 ]
- 24 125 coulombs
-
48 250 coulombs
- 72 375 coulombs
- 96 500 coulombs
The correct answer is: B
Explanation
4 Faradays of electricity is required to liberate one mole of oxygen gas∴ quantity of electricity required
= 0.125 * 4 * 96500 = 48250 coulombs