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The vapour pressure of acetone at 20^@C ...

The vapour pressure of acetone at `20^@C` is 185 torr. When 102 g of a non-volatile substance was dissolved in 100 g of acetone at `20^@C` ,its vapour pressure was 183 torr. The molar mass (g mol^(-1)` of the substance is :

A

32

B

64

C

128

D

488

Text Solution

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The correct Answer is:
B
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