# Calculating Molarity and Molality

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Question: A sodium chloride solution has a molarity of 1.250 mol/L and a density of 1.050 g/ml. Calculate molality, the mole fraction of water, and the percent by mass of sodium chloride.

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#### Solution Preview

To answer this question one must be current with the definitions.

- Molality = moles of a substance/ kilograms of solvent

In this case we have a solution with the density of 1.050 g/mL, which can be ...

#### Solution Summary

This 150 word solution, provides a step-by-step explanation of how to go about completing the necessary calculations for this question. As well, additional information, such as definitions, are included to make the explanation as clear as possible and further expand on the subject.

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