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100g of liquid A(molar mass 140"g mol"^(...

100g of liquid A(molar mass `140"g mol"^(-1)`) was dissolved in 1000g of liquid B(molar mass `180"g mol"^(-1)`). The vapour pressure of pure liquid B was found to be 500 torr. Calculate the vapour pressure of pure liquid A and its vapour pressure in the solution if the total vapour pressure of the solution is 475 torr.

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The correct Answer is:
`32.0`
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