Molal depression constant of water is 1.86K Kg/mole. Freezing point of urea solution containing ‘X’ grams of urea in 100 grams of water is 269.28K. Value of ‘X’ is

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answer is 2.

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Detailed Solution

∆Tf=273-269.28K=3.72K; ∆Tf=Kf.m ; m=3.721.86=2m ; 2=X60× 1000100; X=12 grams;

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