Question

27g of Al will react completely with how many grams of oxygen?​

Answer 1

Answer:

2Al+ 3/2 O2 ⟶Al2O3

Moles of Al= 27/27 =1 mol

2 mole Al gives 3/2 mole O2

1 mole Al gives 3/4 mole O2

Mass of oxygen = 3/4×32=24 gram

Hope this is helpful for you.