`27 g` of `Al` will react completely with…… `g` of `O_(2)`

27g of Al will react completely with

27 gm of Al will react completely with: 4Al + 3O_(2) rarr 2Al_(2)O_(3)

12 g of Mg will react completely with an acid to give

27 g Al will react completely with oxygen equals to ................

27 g of Al (at. Mass 27) will react completely with oxygen equal to

How many grams of oxygen will be required to react completely with 27 g of Al? (Atomic mass : A1 = 27, O = 16)