Question

27g of aluminium react with how much mass of o2 to produce al2o3

Answer 1

Answer:

12 g of O2.

Explanation:

4Al + 3O2 → 2Al2O3

mass of Al= 4×27=108g

mass of O2=16×3=48g

108g Al react with → 48 g O2

1g Al react with → 48/108 g O2

27g Al react with → 48/108 × 27 g O2

                             =12 g O2