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A solution of 1.25g of a certain non-vol...

A solution of 1.25g of a certain non-volatile substance in 20g of water freezes at 271.94K. Calculate the molecular mass of the solute `(K_(f)=1.86" K kg mol"^(-1))`.

A

`207.8`

B

`179.7`

C

`209.6`

D

`109.6`

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The correct Answer is:
D
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