Question

Explain why concentration in terms ofmolality is preferred in comparison tomolarity.​

Answer 1

$\huge\underline{\underline\mathtt{Answer:-}}$

-Molarity is the concentration in moles per litreof the solution. It depends upon temperature. Asthe temperature changes volume of the solutionchange, hence the molarity changes.

-Molality is the concentration in moles per kilogram of the solvent. Since the mass of the solventis independent of temperature, the molality isindependent temperature. Therefore molality (m)is preferred in comparison with molarity (M).

Answer 2

Explanation:

Molality is considered better for expressing the concentration as compared to molarity because the molarity changes with temperature because of expansion or contraction of the liquid with temperature

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