Answer:
If there is 3.0 moles of oxygen consumed, there is 2.0 mol of iron (III) oxide (Fe2O3) formed.
Explanation:
Step 1: Data given
Number of moles oxygen reacted = 3.0 moles
Step 2: The balanced equation
4Fe + 3O2 → 2Fe2O3
Step 3: Calculate moles of iron (III) oxide (Fe2O3)
For 4 moles Fe consumed, we need 3 moles of O2 to produce 2 moles of Fe2O3
For 3.0 moles O2 consumed , we need 2/3 * 3.0 = 2.0 moles of Fe2O3
If there is 3.0 moles of oxygen consumed, there is 2.0 mol of iron (III) oxide (Fe2O3) formed.
