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Difference between molarity n molality??

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Difference between molarity n molality??

Posted by Aadya Singh 3 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Sia ? 3 years, 9 months ago

Molarity	Molality
Molarity of a given solution is defined as the total number of moles of solute per litre of solution.	Molality is defined as the total moles of a solute contained in a kilogram of a solvent.
Mathematical expression is M = number of moles of the solute /Volume of solution given in terms of litres.	Mathematical expression is m = Numbers of moles of solute/Mass of solvent in kgs m = (g ✕ 1000)/(W ✕ m).
Depends on volume of the whole solution.	Depends on the mass of the solvent.
Unit sign expressed as (M).	Unit sign expressed as (m).
Molarity has a unit of moles/liter.	Molality has units of moles/kg.

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