150 g of an unknown molecular material was dissolved in 450g of water. The resulting solution was found to freeze at `-

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Q 2651134924.     150 g of an unknown molecular material was dissolved in 450g of water. The resulting solution was found to freeze at `-0.64^o` C. What is the molar mass of this material? (Kf for water =1.86 `gmol^-1`)
CBSE-12th 2012

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