Question

Definition of molality and molarity.

Answer 1

Molarity and Molality. Molarity (M) isdefined as the number of moles of solute per liter of solution. molarity = moles of solute/liters of solution.Molality (m) is defined as the number of moles of solute per kilogram of solvent. molality = moles of solute/kilograms of solvent.

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Answer 2

Answer:-

Molality Is Better Than Morality

Explanation

As we know that

$\begin{lgathered}Molarity = \frac{Number \: of \: mole}{Volume \: of \: solution} \\\end{lgathered}$

and

$\begin{lgathered}Molality = \frac{Number \: of \: mole}{Weight \: of \: solvent} \\\end{lgathered}$

so we observe that in the molarity ,volume factor came the also according to the Charles Law

$V \: \: \alpha \: \: T$

means that the molarity can change on changing the temperature but in molality there is no such factor which changes with the change in external environment

Conclusion:-

Molality is better than molarity because molarity varies with temperature means we get different value of molarity at different temperatures.....

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