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Define the following terms : (i) Mole fraction (ii) Molality (it) Molarity (iv) Mass percentage (v) Normality. |
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Answer» Solution : (i) Mole fraction : Mole fraction of a component in solution is the ratio of the moles of that component and total moles present in solution. (II) Molality : It is the NUMBER of moles of solute present in 1 kg solvent. Units: mole `kg^(-1)` (III) Molarity : It is the number of moles of solute present in 1 litre solution. Units : mole`""^(-1)` (IV) Mass percentage: It is the mass of solute present in 100 g solution. (v) NORMALITY : It is the number of gram equivalents of solute DISSOLVED per litre of the solution. Its units are g. equivalent per litre.. |
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