Answer:
Number of moles of Al₂O₃ = 0.45 mol
Step-by-step explanation:
Given data:
Number of moles of Fe produced = 1.35 mol
Number of moles of Al₂O₃ = ?
Solution:
2Al + 3FeO → 3Fe + Al₂O₃
now we will compare the moles of iron and Al₂O₃
 Fe : Al₂O₃
 3 : 1
 1.35 : 1/3×1.35 = 0.45 mol