Which of the following compounds has its oxygen composition equal to 50.0%?

Question

Quizplus · Accepted Answer

The compound (NH₄)₂SO₄ has its oxygen composition equal to 50.0%. To determine this, calculate the molar mass of the compound and the total mass of oxygen in the formula, then find the percentage of oxygen by mass. For (NH₄)₂SO₄, the molar mass is approximately 132.14 g/mol (32.07 for S, 16.00 x 4 for O, and the rest for N and H), with 64.00 g/mol coming from oxygen. The percentage of oxygen by mass is (64.00 / 132.14) * 100% ≈ 50.0%.

Which of the Following Compounds Has Its Oxygen Composition Equal