Calculate the mass percent composition of sulfur in Al₂(SO₄)₃. A) 28.12% B) 9.372% C) 42.73% D) 21.38% E) 35.97%

Question

Quizplus · Accepted Answer

The molar mass of Al2(SO4)3 is calculated as follows: Al = 26.98 g/mol, S = 32.07 g/mol, O = 16.00 g/mol. The formula contains 2 Al, 3 S, and 12 O. Total molar mass = 2(26.98) + 3(32.07) + 12(16.00) = 342.15 g/mol. The mass of sulfur is 3(32.07) = 96.21 g/mol. The mass percent of sulfur is (96.21/342.15) * 100% = 28.12%.

Calculate the Mass Percent Composition of Sulfur in Al2(SO4)3

Calculate the Mass Percent Composition of Sulfur in Al₂(SO₄)₃