The percent composition :
Al : 15.79%
S : 28.07%
O : 56.14%
Further explanation
Given
Aluminum, Oxygen, and Sulfur in Al₂(SO₄)₃ compound
Required
The percent composition
Solution
Molar mass of Al : 27 g/mol
Molar mass of O : 16 g/mol
Molar mass of S : 32 g/mol
Molar mass of Al₂(SO₄)₃ : 342 g/mol
% Al = 2.MM Al / MM Al₂(SO₄)₃ x 100%=2.27/342 x 100%=15.79%
% S = 3. MM S / MM Al₂(SO₄)₃ x 100%= 3.32/342 x 100%=28.07%
% O = 12.MM O / MM Al₂(SO₄)₃ x 100%= 12.16/342 x 100%=56.14%
