the compound al2o3 contains 53% metal ,what is the relative atomic mass of aluminium

Answer 1

53% Al so 47% O
Take 100 g sample gives
53 g Al
47 g O.
Convert to mols. x = atomic mass Al.
53/x = ?
47/16 = 2.94
For the formula to be Al2O3, ? must be 2.94*(2/3) = 1.96
Then (53/x) = 1.94 so x = 27

Answer 2

i like the explanation

Answer 3

The explanation is not clear

Answer 4

Please explain how you got the 16

Answer 5

It's ok I understand thanks 😊☺