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Define the following terms : (i) Molalit...

Define the following terms : (i) Molality (m) (ii) Abnormal molar mass.

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(i) Molality (m) – Molality of a solution is the number of moles of the solute dissolved in 1000 g of the solvent.
(ii) Abnormal molar mass – Molecular mass that is either lower or higher than the expected value or normal value is called abnormal molar mass. Such an abnormal molar mass is obtained from calculations from colligative properties when the solute undergoes association or dissociation
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