Question

Consider the reaction

4Fe + 30, - 2FeO,
Round to 2 decimals for your response. If 540g of iron react with 400g of oxygen gas, which will be the limiting reactant? 540g of
iron can produce
type your answer... moles of iron oxide. And, 400g of oxygen gas can produce type your answer...
moles of iron oxide. choose your answer...
will be the limiting reactant.

Answer 1

For Iron :

n Fe = m Fe / Mr Fe

n Fe = 540 / 55.85

n Fe = 9.67 mol

n Fe₂O₃ = (2/4) • 9.67

n Fe₂O₃ = 4.83 mol

For Oxygen :

n O₂ = m O₂ / Mr O₂

n O₂ = 400 / 32

n O₂ = 12.5 mol

n Fe₂O₃ = (2/3) • 12.5

n Fe₂O₃ = 8.33 mol

Fe is the limiting reactant