Reactants products
fe2o3 al al2o3 fe
starting amount in reaction 3 moles 5 moles

determine the maximum amount of fe that was produced during the experiment. explain how you determined this amount.

Answer is: the maximum amount of Fe is 5 mol.

Balanced chemical reaction: 2Al + Fe₂O₃ → Al₂O₃ + 2Fe.

n(Fe₂O₃) = 3 mol; amount of iron(III) oxide.

n(Al) = 5 mol; amount of aluminium; limiting reactant. For reaction with 3 moles of iron(II) oxide 6 moles of aluminium is needed.

From balanced chemical reaction: n(Al) : n(Fe) = 2 : 2 (1 : 1).

n(Fe) = n(Al).

n(Fe) = 5 mol; amount of iron.