5.30 write ionic half-equations for the reactions at the electrodes in the diaphragm cell

Positive electrode (anode):
Chloride ions lose electrons to form chlorine molecules

2Cl^- à Cl₂ + 2e^-

Negative electrode (cathode):

Water molecules gain electrons to form hydroxide ions and hydrogen molecules

2H₂O + 2e^- à 2OH^- + H₂