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

Question

Quizplus · Accepted Answer

First, calculate the molar mass of Al₂(S₂O₃)₃, which is 342.2 g/mol. Then, find the moles of Al₂(S₂O₃)₃ in 25.6 g: 25.6 g / 342.2 g/mol = 0.0748 mol. Each formula unit contains 6 sulfur atoms, so multiply the moles by Avogadro's number (6.022 x 10²³) and by 6 to find the number of sulfur atoms: 0.0748 mol * 6.022 x 10²³ * 6 = 2.37 x 10²³ sulfur atoms.

How Many Sulfur Atoms Are Present in 25