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When 1.9 g of a substance is dissolved i...

When 1.9 g of a substance is dissolved in 128 g water, freezing point of solution is depressed by `-0.35^@C`. Calculate molecular mass of the substance. `(K_f " of water is " 1.86 K kg mol^(-1))`

A

58.12

B

69.32

C

78.88

D

101.25

Text Solution

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The correct Answer is:
C
78.88
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