Which of the following equations best describes how to calculate the molar mass of Mg(OH)₂?

Question

Quizplus · Accepted Answer

Mg(OH)₂ contains one magnesium atom (with a molar mass of 24.3 g/mole), one sulfur atom (with a molar mass of 32.1 g/mole), twelve hydrogen atoms (with a total molar mass of 12.12 g/mole), and one oxygen atom (with a molar mass of 16.0 g/mole). Therefore the molar mass can be calculated as: 24.3 g/mole + 2(16.0 g/mole + 1.01 g/mole) + 12(1.01 g/mole) = 120.44 g/mole. This matches answer choice D.

Which of the Following Equations Best Describes How to Calculate