Ch.12 - SolutionsWorksheetSee all chapters
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Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: 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

Solution: 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

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.

Solution
  • 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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