Electrolysis of Concentrated Aqueous Sodium Chloride Using Inert Electrodes
Electrolysis of Dilute Sulfuric Acid using Inert Electrodes
Electrolysis of aqueous copper(II)sulfate using inert electrodes
Summary
Sample
Explain why volume of hydrogen produced at cathode is 2 times volume of oxygen produced at anode.
- in this electrolytic cell, 4 moles of electrons is transferred from anode to cathode which results in the formation of 2 moles of hydrogen gas at the cathode but only 1 mole of oxygen gas at the anode. According to Avogadros law, one mole of any gas occupies 24 dm3 at r.t.p. thus fro this reaction, mole ratio of hydrogen gas to oxygen gas produced is the same as the volume ratio of these gases which is 2:1. thus volume of hydrogen gas produced during electrolysis is twice the volume of oxygen