# Molarity of Aqueous Salt Solutions

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Input the mass of solute and the volume of the resulting solution to calculate the molarity (M, in moles/liter) of several common water-soluble salts. The number of moles equals the mass divided by the molecular weight MW. Generally, since the volume of the solution is only very slightly changed by addition of solute, it is usually a sufficiently accurate approximation to compute molarity as moles of solute divided by volume of *solvent*.

Contributed by: S. M. Blinder (July 2008)

Open content licensed under CC BY-NC-SA

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"Molarity of Aqueous Salt Solutions"

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Published: July 7 2008