At 289 k the vapor pressure of pure pentane (C5H₁2) is 0.428 atm and the vapor pressure of pure hexane (C6H14) is 0.133 atm. Mixing 45.6 g of pentane with 46.8 g of hexane gives a solution that is nearly ideal. (a) Calculate the mole fraction of pentane in the solution. X pentane in solution = (b) Calculate the total vapor pressure of the solution at 289 K. Total vapor pressure solution = (c) Calculate the mole fraction of pentane in the vapor in equilibrium with the solution. X pentane atm in vapor =

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Chapter1: Chemical Foundations
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At 289 K the vapor pressure of pure pentane (C5H12) is 0.428 atm and the vapor
pressure of pure hexane (C6H₁4) is 0.133 atm. Mixing 45.6 g of pentane with 46.8 g of
hexane gives a solution that is nearly ideal.
(a) Calculate the mole fraction of pentane in the solution.
X
pentane
in solution =
(b) Calculate the total vapor pressure of the solution at 289 K.
Total vapor pressure solution =
(c) Calculate the mole fraction of pentane in the vapor in equilibrium with the
solution.
X
pentane
atm
in vapor =
Transcribed Image Text:At 289 K the vapor pressure of pure pentane (C5H12) is 0.428 atm and the vapor pressure of pure hexane (C6H₁4) is 0.133 atm. Mixing 45.6 g of pentane with 46.8 g of hexane gives a solution that is nearly ideal. (a) Calculate the mole fraction of pentane in the solution. X pentane in solution = (b) Calculate the total vapor pressure of the solution at 289 K. Total vapor pressure solution = (c) Calculate the mole fraction of pentane in the vapor in equilibrium with the solution. X pentane atm in vapor =
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