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A solution containing 6.8 g on non-ionic...

A solution containing 6.8 g on non-ionic solute in 100 g of water was found to freeze at `-0.93^@C`. The molar mass of solute is `(K_b= 1.86^@C m^(-1))`

A

13.6

B

34

C

68

D

136

Text Solution

Verified by Experts

The correct Answer is:
D

`M_2 = (K_f xx w_2 xx1000)/(DeltaT_f xx w_1) = (1.86xx6.8xx 1000)/(0.93xx100) = 136`
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