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Q. 19. Explain:a) Molarityb) Molalityc) Normality |
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Answer» 1.Molality, also called molal concentration, is a measure of the concentration of a solute in a solution in terms of amount of substance in a specified amount of mass of the solvent. This contrasts with the definition of molarity which is based on a specified volume of solution. 2.In chemistry,molarityis a concentration unit,definedto be the number of moles of solute divided by the number of liters of solution. 3.Normality is a measure of concentration equal to the gram equivalent weight per liter of solution. Gram equivalent weight is the measure of the reactive capacity of a molecule. The solute's role in the reaction determines the solution's normality. Normality is also known as the equivalent concentration of a solution. |
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