molality

noun

The concentration of a solution expressed in moles of solute per kilogram of solvent.

noun

A measure of concentaration of substances in mixtures, 1 molal being the concentration of a solution containing 1 mole of solute per 1000 grams of solvent. Compare molar.

noun

the concentration of a substance in solution, expressed as the number of moles of solute per kilogram of solvent

noun

concentration measured by the number of moles of solute per kilogram of solvent