Define molarity, molality and normality of a solution. – InterviewSolution

1.	Define molarity, molality and normality of a solution.
Answer» 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,

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