electrochemistry

Electrolysis of sodium nitrate

Electrolysis of a sodium nitrate solution produces oxygen at the anode and hydrogen at the cathode.

Electrolysis of magnesium nitrate

Electrolysis of a magnesium nitrate solution produces oxygen at the anode and hydrogen at the cathode.

Electrolysis of a sodium sulfate solution

An electric current is passed through a sodium sulfate solution. Gases are collected at the electrodes are tested for pH.