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An aqueous solution of a non-volatile solute is such that the vapour pressure is 25% lesser than that of water at same temperature. The molality of the solution will be :

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By Expert Faculty of Sri Chaitanya
a
100054m
b
100072m
c
300054m
d
300072m

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detailed solution

Correct option is A

An aqueous solution of a non-volatile solute is such that the vapour pressure is 25% lesser than that of water at same temperature. The molality of the solution will be :

PAPSPA=nBwA×1000×MA10002575=m×181000m=100054


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