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11 Nov 2019

The vapor pressures of benzene (C6H6) and hexane (C6H14) at 75°C are 648 mm Hg and 921 mm Hg, respectively.

(a) If 340.0 g benzene is mixed with 740.0 g hexane at 75°C, what are the mole fractions of benzene and hexane in this solution?

mole fraction of benzene____?

mole fraction of hexane _____?

b.) Assuming this is an ideal system that obeys Raoult's law, find the partial vapor pressure of each component over the solution.

vapor pressure of benzene mm HG???

Vapor Pressure of Hexane??? mm HG

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Nestor Rutherford
Nestor RutherfordLv2
14 Sep 2019

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Related questions

PLEASE explain steps, having troble solving these two questions

1. a) What are the partial and total pressures of a solution obtained by mixing 35.8 g benzene, C6H6, and 56.7 g toluene, C7H8, at 25.0 degerees Celsius?

b) Determine the composition of the vapor above this benzene-toluene solution. At 25.0 degerees Celsius the vapor pressures of benzene and toluene are 95.1 mm Hg and 28.4 mm Hg respectively.

2. Claculate the mole fraction of benzene in a benzene-toluene solution that is in equilibrium at 25.0 degrees Celsius with a vapor phase that contains 62.0 mol % C6H6. At 25.0 degrees Celsius the vapor pressures of benzene and toluene are 95.1 mm Hg and 28.4 mm Hg respectively.

At a given temperature the vapor pressures of benzene anf toluene are 183mm Hg and 59.2 mm Hg, respectively. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenzene= 0.600

1. Pentane (C5H12) and hexane (C6H14) form an ideal solution. At 25oC the vapor pressures of pentane and hexane are 511 and 150 torr, respectively. A solution is prepared by mixing 25 mL pentane (density, 0.63 g/mL) with 36 mL hexane (density, 0.66 g/mL). What is the vapor pressure of the resulting solution? Ptotal = ___ torr 2. Pentane (C5H12) and hexane (C6H14) form an ideal solution. At 25oC the vapor pressures of pentane and hexane are 511 and 150 torr, respectively. A solution is prepared by mixing 25 mL pentane (density, 0.63 g/mL) with 36 mL hexane (density, 0.66 g/mL). What is the composition by mole fraction of pentane in the vapor that is in equilibrium with this solution? X V pen = ___

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