If 80 grams of Al and 80 grams of Fe2 O3 are combined, what is the maxium number of moles of fe that can be produced?

The maximum number of moles of Fe that can be produced is 1 mol

Explanation:

The reaction is this:

2Al + Fe₂O₃ → 2Fe + Al₂O₃

Moles of Al = Mass of Al / Molar mass Al

80 g / 26.98 g/m = 2.96 moles

Mol of Fe₂O₃ = Mass of Fe₂O₃ / Molar mass Fe₂O₃

80 g / 159.7 g/m = 0.500 moles

For sure, with the naked eye, the limiting reagent is the Fe₂O₃.

1 mol of oxide, produces 2 mol of Fe

So, 0.5 mol of oxide, will produce 1 mol of Fe