In molality method  the quantities of the solute and the solvent are expressed in weights, the molality does not change with the change in temperature.

$\therefore$  Molality is independent of temperature.

Molarity (M): The number of moles of a solute dissolved in one litre of the solution is known of the Molarity (M) of the solution.

$M=\frac{W}{GMW}\times \frac{1}{Vinlit}$     (or)

$M=\frac{W}{GMW}\times \frac{1000}{Vinml}$

Normality (N): The number of gram equivalents of the solute present in one litre of the solution is known as the Normality (N) of the solution

$Normality\left(N\right):\frac{W}{GEW}\times \frac{1}{Vinlit}$    (or)

$N=\frac{W}{GEW}\times \frac{1000}{Vinml}$

Formality: The number of gram formula units present in one litre of solution is called as formality.

Formality (F): $\frac{W}{GFW}\times \frac{1}{Vinlit}$    (or)

$=\frac{W}{GFW}\times \frac{1000}{Vinml}$

Molality, Normality and Formality.  These are dependent on temperature.