# What is the mole fraction of sodium chloride in solution that is 13.0% by mass sodium chloride...

## Question:

What is the mole fraction of sodium chloride in solution that is 13.0% by mass sodium chloride and that has a density of 1.10 g/mL?

## Mole Fraction:

The mole fraction of a substance in a mixture/solution describes how much of a substance is present when compared to the whole mixture/solution. Often we are given mass of a solute and volume of the solution. To work with these given units, we will need the molar masses of solute and solvent and the density of the solution.

## Answer and Explanation: 1

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Assuming an aqueous solution of which water is the solvent, for every 100 g solution, we have 13.0 g of sodium chloride (NaCl) and 87.0 g water.

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Chapter 4 / Lesson 8Learn how to convert grams to moles and moles to grams, including the formula to convert grams to moles. See examples of how to find moles from grams.

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