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150g of an unknown material was …

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150g of an unknown material was dissolve in 450 g of water. The resulting solution was found to be freeze at - 0.64°c. What is molar mass of material? (kf of water = 1.86 g/mol)

Posted by Aman Singh 6 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Chintan Patel 6 years, 6 months ago

Freezing point of solution=273k Therefore -0.64+273=272.36k Now finally 273-272.36=0.64k Now place all the values in formula for Elevation in boiling point

Chintan Patel 6 years, 6 months ago

Freezing point of solution=273k

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