What quantity of electricity will liberate ..

Question 1 Report

What quantity of electricity will liberate 0.125 mole of oxygen molecules during the electrolysis of dilute sodium chloride solution?

24,125 C

48,250 C

72,375 C

96,500 C

Answer Details

4OH ⇒ 2H $_{2}$ O + O $_{2}$ + 4e-

From the equation:

1 mole of Oxygen requires 4e

i.e 1 mole of Oxygen requires 4F,

where 1F = 96,500 C

[ 4 X 96,500 X 0.125 ] ÷ 1

= 48,250 C