When1 g of urea is dissolved in 100 g of solvent the dipperession in the freezing point was 0.2 k 1.5 g of an unknown substance when dissolved in 85 g of the same?
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Answer:
0.2 × 1.5 = 85
= 0.30x = 85
= x = 85/0.30
x = 8500/30
x = 273
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