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Problem

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question

A nonvolatile benzoic acid dissolves in ethanol to form an ideal solution. Assuming there is no association or dissociation of the benzoic acid, calculate the solubility of the acid and the vapor pressure of the solution at 80°C given the following data. ∆H, cal/mole Compound Mol. wt M.p ;°C Normalb.p Fusion Vaporization Benzoic acid 122 122 249°C 4,000 12,000 Ethanol 46 -114 80°C 2,000 9,500

category

chemistry

options

  1. 0.45 mole fraction, 0.55atm
  2. 0.60 mole fraction, 0.40 atm
  3. 0.50 mole fraction, 0.50atm
  4. 0.70 mole fraction, 0.30 atm
  5. 0.55 mole fraction, 0.45atm
  6. 0.35 mole fraction, 0.65 atm
  7. 0.40 mole fraction, 0.60atm
  8. 0.75 mole fraction, 0.25 atm
  9. 0.30 mole fraction, 0.70 atm
  10. 0.65 mole fraction, 0.35 atm

src

stemez-PhysicalChemistry

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