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100 g of liquid A (molar mass 140 g mol') was dissolved in 1000 g of liquid B (molar mass 180 g mol). The

100 g of liquid A (molar mass 140 g mol') was dissolved in 1000 g of liquid B (molar mass 180 g mol). 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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