Fe2O3 + 2A1 - Al2O3 + 2Fe
How many moles of iron (Fe) would be produced if
2.50 mol Fe,03 react? Make sure to use the
correct number of significant figures in your
answer.
2.50 mol Fe2O3 =
mol Fe

I’m assuming in this scenario that 2.5 mols of Fe2O3 is reacting with excess reactant. Based on the balanced equation, you can see that there’s a 1:2 ratio between Fe2O3 and Fe. This means that to find the mols of Fe formed, you need to multiply the mols of Fe2O3 by 2.
2.50mol Fe2O3 * 2mol Fe/1 mol of Fe2O3 = 5.00mols Fe.