Question

Calculate the moles of FeCl3 that will form if 2.0 moles of Fe react with sufficient Cl2.

Answer 1

2 Fe + Cl₂ $\to$ FeCl₃ ( unbalanced)

Now balance the reaction

2 Fe + 3 Cl₂ $\to$ 2 FeCl₃

2 moles of Fe react with 3 moles of Cl₂ to give

2 moles of FeCl₃