Benzene (ben) and toluene (tol) form nearly ideal solutions. The 20Â°C vapor pressures are Pben = 74.7 torr and Ptol = 22.3 torr. What is the tota pressure when the a) xben =0, b) xben =1, c) xben =0.2? Please enter the pressure in torr in 3 significant figures, e.g. if the answer is 70 torr, enter "70.0". a) Ptotal =torr, b) Ptotal =torr, c) Ptotal =torr

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Elin HesselLv2

17 Dec 2019

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Benzene (C₆H₆) and toluene (C₆H₅CH₃) form nearly ideal solutions. At 20Â°C the vapor pressure of benzene is 74.7 torr, and that of toluene is 22.3 torr. (a) Find the equilibrium partial vapor pressures above a 20Â°C solution of 200.0 g of benzene plus 100.0 g of toluene. (b) Find the mole fractions in the vapor phase that is in equilibrium with the solution of part (a).

a) P_toluene = ? torr, P_benzene= ? torr

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