3Fe + 4H2O ‐> Fe3O4 + 4H2 10 g of water vapour are passed on 16.8 g of iron which is heated till redness find the limiting reactant

The limiting reactant : Fe

Reaction

3Fe + 4H₂O ⇒ Fe₃O₄ + 4H₂

mass of H₂O = 10 g

mol H₂O (MW=18 g/mol) :

mass of Fe = 16.8 g

mol Fe(MW=56 g/mol) :

Limiting reactant : the smallest ratio between mol : reaction coefficient

Fe :

H₂O :

Fe as limiting reactant

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