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The molality of a solute in the solution is the

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a
mass of solute per dm3 of solution
b
amount of solute per dm3 of solution
c
amount of solute per kg of solution
d
amount of solute per kg of solvent

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detailed solution

Correct option is D

The number of moles of solute dissolved in 1 kg of the solvent is the molality of a solution. Mol kg1 is the unit of molarity.
The concentration of a solution is therefore said to be one molal if one gramme of a solute is present in one kilogramme of the solvent.

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