Problem: The vapor pressures of several solutions of water–propanol (CH3CH2CH2OH) were determined at various compositions, with the following data collected at 45°C:a. Are solutions of water and propanol ideal? Explain.

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  • An Ideal Solution are those which follow the Raoult's Law in all range of its concentration where Ptheory = Pobserved
  • Raoult's Law states that the partial pressure of each component of an ideal solution of liquids is equal to the vapour pressure of the pure component multiplied by its mole fraction in the solution:

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The vapor pressures of several solutions of water–propanol (CH3CH2CH2OH) were determined at various compositions, with the following data collected at 45°C:

a. Are solutions of water and propanol ideal? Explain.

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Our tutors have indicated that to solve this problem you will need to apply the The Colligative Properties concept. You can view video lessons to learn The Colligative Properties. Or if you need more The Colligative Properties practice, you can also practice The Colligative Properties practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.