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how many grams of aluminum a l can be can be recovered from a 34.5g sample of AI2O3 ​

Sagot :

Answer:

2Al2O3 → 2Al + 3O2

Molecular mass of Al2O3 = 102 u.

Atomic mass of Al = 27 u

From the stoichiometric equation we can write,

from 102 g of Al2O3 54 g of Al can be recovered.

So, from 34.5 g Al2O3 (54/102)×34.5 g = 18.26 g of Al can be recovered.

Hope, this helps.