Potassium superoxide (KO₂) is used as a source of oxygen in re-breathing masks.

4KO2+2H2O→4KOH+3O2

Identify the limiting reactant in each of the following reactant mixtures:

i) 6.4 moles of KO₂ and 2.1 moles of H₂O.

ii) 8.4 moles of KO₂ and 1.5 moles of H₂O.