Molality Calculator
This Molality calculator calculates the molality, when you provide the 'Mass of the Solvent in gram' and 'No. of Moles of Solute in mol'. After entering these values press 'Calculate Molality' button.
Molality Calculator
Molality Meaning
Molality is a concentration unit, that is used in chemistry & chemical laboratories to express the concentration of a solute in a solution. It is defined as the number of moles of the solute present in per kilogram of the solvent.
Molality Formula
The formula for molality (m) is given by:
Molality (m) = moles of solute / mass of solvent (in kg)
Unit of Molality
Uses of Molality
The key distinction between molality and other concentration units like molarity is that molality is based on the mass of the solvent, not the volume. This makes molality particularly useful in situations where temperature changes can significantly alter the volume of the solution (as in the case of some gases), but the mass of the solvent remains constant.
Molality is often used in colligative property calculations, especially in situations involving changes in boiling point or freezing point, where the ratio of moles of solute to mass of solvent is critical.
Thanks!
