Final answer:
Using the stoichiometry of the given chemical equation, 14 moles of H₂Fe₃O₄ can produce 42 moles of Fe when reacting with hydrogen.
Step-by-step explanation:
To calculate the number of moles of Fe produced from 14 moles of H₂Fe₃O₄ in the reaction H₂Fe₃O₄ + 4H₂ = 3Fe + 4H₂O, we can follow the stoichiometry of the balanced chemical equation.
Since the balanced equation shows that 1 mole of H₂Fe₃O₄ produces 3 moles of Fe, for 14 moles of H₂Fe₃O₄, we would have 14 moles * 3 moles Fe/mole H₂Fe₃O₄ = 42 moles of Fe.