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Q.

An aqueous solution of urea (NH2CONH2) is 3.0 molal. The mole fraction of urea is

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a

0.33

b

0.25

c

0.66

d

0.05

answer is D.

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Detailed Solution

m=χ2×10001−χ2×Mw13=χ2×4610001−χ2×18Solve for x2= 0.005
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