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

Question

100 g of liquid A (molar mass 140 g mol –1 ) was dissolved in 1000 g of liquid B (molar mass 180 g mol –1 ). The vapour pressure of pure liquid B was found to be 500 torr. Calculate (i) the vapour pressure of pure liquid A and (ii) its vapour pressure in the solution if the total vapour pressure of the solution is 475 Torr., 280.7 torr, 49 torr, 364.5 torr, 13 torr, 280.7 torr, 32 torr, 364.5 torr, 49 torr

MARKS App · Accepted Answer

Correct Option is : (C) 280.7 torr, 32 torr

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