1.

Freezing point of urea solution is -0.6^(0)C. How much urea is required to be dissolved in 3 kg water ?[M("urea")=60 g mol^(-1), K_(f)=1.5^(0)"C Kg mol"^(-1)]

Answer»

2.4 G
3.6 g
6.0 g
72 g

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