How many sulfur atoms are present in 25.6 g of Al₂(S₂O₃)₃?

Question

Quizplus · Accepted Answer

To find the number of sulfur atoms, first calculate the molar mass of Al₂(S₂O₃)₃, which is approximately 342.17 g/mol. Then, find the moles of Al₂(S₂O₃)₃ in 25.6 g: 25.6 g / 342.17 g/mol ≈ 0.0748 mol. Since each formula unit contains 6 sulfur atoms, multiply the moles by Avogadro's number (6.022 × 10²³) and by 6 to find the number of sulfur atoms: 0.0748 mol × 6.022 × 10²³ × 6 ≈ 2.37 × 10²³ sulfur atoms.

How Many Sulfur Atoms Are Present in 25