if you start with 10.0 moles of aluminum, how many moles of aluminum oxide will be produced ? 4 al + 3 o2 → 2 al2o3

Answer 1

From the balanced chemical reaction, 4 moles of Al reacts to form 2 moles of Al₂O₃. The mole ratio of Al to Al₂O₃ is 4:2. Use this mole ratio for the stoichiometry conversion.

10.0 mol Al x (2 mol Al₂O₃ / 4 mol Al) = 5.00 mol Al₂O₃ (rounded to 3 sig figs)