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`0.6g`of a solute is dissolved in `0.1`litre of a solvent which develops an osmotic pressure of 1.23 at m at `27^(@)C`.The molecular mass of the substance is
A. `149.5 g "mol"^(-1)`
B. `120 g "mol"^(-1)`
C. `430 g "mol"^(-1)`
D. None.

1 Answer

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Best answer
Correct Answer - B
`M=(WRT)/(pi V)= (0.6 xx 0.082 xx 300)/(1.23 xx 0.1)=120`

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