define molality please answer it
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It is defined as the number of moles of solute present in 1 kg of solvent it is known as Molality
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Hey !!
It is defined as the number of moles of solute per 1000 g or 1 kg of solvent.
Molality = Number of moles of solute / Mass of solvent in kg
(OR) m = n/W (or) m = Wb × 1000 / W × Wa
where n is number of moles of solute, Wa is weight of solvent, Wb is quantity of solute, Mb is molar mass of solute. Molality and mole fraction do not change with change in temperature.
Units :- kg⁻¹ or molal (m)
Good luck !!
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