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Arrhenius Acid

10 gm acetic ...

Question

10 gm acetic acid is dissolved in 100 gm of each of the following solvents. In which of them will the molality of the solute be maximum? Assume no dissociation or association of acetic acid takes place in the solvent.

Water

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Ethanol

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Benzene

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Molality is the same in all of them

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Solution

The correct option is D Molality is the same in all of them
We know,
$M o l a l i t y = \frac{m o l e s o f s o l u t e}{k g o f s o l v e n t}$
Since we are taking same amount of acetic acid in 100 gm of each of the solvents, the molality would be the same in each solution.

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