molal - meaning and definition. What is molal
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What (who) is molal - definition

AMOUNT OF SUBSTANCE OF SOLUTE DIVIDED BY THE MASS OF THE SOLVENT
Osmolality; Molal; Molal solution; Nolal; Nolality

molal         
['m??l?l]
¦ adjective Chemistry (of a solution) containing one mole of solute per kilogram of solvent.
Derivatives
molality noun
Molality         
Molality is a measure of the number of moles of solute in a solution corresponding to 1 kg or 1000 g of solvent. This contrasts with the definition of molarity which is based on a specified volume of solution.
osmolality         
[??zm?(?)'lal?ti]
¦ noun Chemistry the concentration of a solution expressed as the total number of solute particles per kilogram.
Origin
1950s: blend of osmotic (see osmosis) and molal, + -ity.

Wikipedia

Molality

Molality is a measure of the number of moles of solute in a solution corresponding to 1 kg or 1000 g of solvent. This contrasts with the definition of molarity which is based on a specified volume of solution.

A commonly used unit for molality in chemistry is mol/kg. A solution of concentration 1 mol/kg is also sometimes denoted as 1 molal. The unit mol/kg requires that molar mass be expressed in kg/mol, instead of the usual g/mol or kg/kmol.