Molality is the concentration of a solution given in terms of the number of moles of solute in 1 kilogram of solvent.

The molality of a solution is given the symbol m. The molality of a solution can be found by dividing the number of moles of solute by the mass of solvent in kilograms.

It is important to note the distinction between molality and molarity. Molality is a concentration expressed in terms of the mass of solvent, whereas molarity is given in terms of the volume of the solution. In some instances the molality and molarity may in fact have the same numerical value, but it should not be assumed that this is always the case.

If 1kg of solvent has two moles of solute dissolved in it than it is a 2 molal solution. This is generally abbreviated to 2 m. A 1msolution has 1 mole of solute dissolved...