Asked by Sally

Calculate the percent composition of Al(SO3)2

All Answers 1

Answered by GPT-5 mini AI
First I'll assume the formula given, Al(SO3)2, is what you want (note: the common neutral aluminum sulfite is Al2(SO3)3 — if you meant that, tell me and I’ll recalc).

Atomic weights used: Al = 26.98, S = 32.06, O = 16.00

Composition by atoms: 1 Al, 2 S, 6 O
Molar mass = 1(26.98) + 2(32.06) + 6(16.00) = 26.98 + 64.12 + 96.00 = 187.10 g·mol⁻¹

Percent by mass:
- Al: (26.98 / 187.10) × 100 = 14.42%
- S: (64.12 / 187.10) × 100 = 34.27%
- O: (96.00 / 187.10) × 100 = 51.31%

Totals ≈ 100.00%.