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What weight of the non-volatile solute u...

What weight of the non-volatile solute urea' `(NH_(2)-CO-NH_(2))` needs to be dissolved in `100 g` of water in order to decrease the vapour pressure of water by `25%`? What will be the molality of the solution?

A

18.52 m

B

62.45 m

C

28.52 m

D

35.64 m

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The correct Answer is:
A
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