Molarity: It is the number of moles, of the solute dissolved per litre of the solution. It is represented by the symbol ‘M’. It is given as:
M = Mass of solute/Volume of solution in litre.
Unit of Molarity is mol/L.
Molality: It is the number of moles of the solute dissolved in 1 kg of the solvent. It is represented by the symbol ‘m’. It is given as :
m = Moles of solute / Weight of solvent in kg
Unit of molality is mol/kg.
Normality: Normality is number of gram equivalents of the solute dissolved per litre of solution. It is denoted by N.
Normality = No. of gram equivalent of solute / Volume of solution
The unit of Normality is gram equivalent per litre,
