Question

If 5.02 moles of iron react with excess oxygen gas, how many moles of Fe2O3 can be produced?

Answer 1

The answer to your question is 2.51 moles of Fe₂O₃ will be formed.

Step-by-step explanation:

Data

Moles of Fe = 5.02

O₂ = excess

Moles of Fe₂O₃ = ?

Process

1.- Write the balanced chemical reaction

4Fe + 3O₂ ⇒ 2Fe₂O₃

Reactants Elements Products

4 Fe 4

6 O 6

2.- Calculate the moles of Fe₂O₃ when react 5.02 moles of Fe using proportions.

4 moles of Fe ---------------- 2 moles of Fe₂O₃

5.02 moles ---------------- x

x = (5.02 x 2) / 4

x = 10.04/4

x = 2.51 moles