Home » Past Questions » Chemistry » What quantity of electricity will liberate 0.125 mole of oxygen molecules during...

What quantity of electricity will liberate 0.125 mole of oxygen molecules during...


Question

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 ]

Options

A) 24 125 coulombs

B) 48 250 coulombs

C) 72 375 coulombs

D) 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

More Past Questions:


Dicussion (1)