How many molecules of glycerol (C3H8O3; molecular mass = 92) are present in 0.5 L of a 1 M glycerol solution?

Name: How many molecules of glycerol (C3H8O3; molecular mass = 92) are present in 0.5 L of a 1 M glycerol solution?
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Question

Quizplus · Accepted Answer

A 1 M solution contains 1 mole of solute per liter. Therefore, 0.5 L of a 1 M solution contains 0.5 moles of glycerol. Since 1 mole contains 6.02 × 10^23 molecules, 0.5 moles contain 0.5 × 6.02 × 10^23 molecules.

How Many Molecules of Glycerol (C3H8O3; Molecular Mass = 92)