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# Chapter+10+Notes - CHAPTER 10 SOLUTIONS AND VAPOR PRESSURE...

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C HAPTER 10: S OLUTIONS AND V APOR P RESSURE CHEM 1310 – G Fall 2009 1

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C HAPTER 10 P ROPERTIES OF S OLUTIONS 10.1: Define solutions and the different mathematical methods for describing solution composition. 10.2: Provide a qualitative and pictorial description of vapor pressure. 10.3: Discuss Raoult’s Law in a quantitative and qualitative method for describing vapor pressure. 10.4: Outline the role of colligative properties and provide mathematical and qualitative descriptions for colligative properties. 2
10.1 S OLUTION C OMPOSITION 3 Solution: A homogeneous mixture Solvent: Solute: The major component The minor component The solute and solvent can be any combination of solid ( s ), liquid ( l ), and gaseous ( g ) phases. Dissolution:

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4 Mathematical Descriptions for Composition Mass percentage (weight percentage): mass percentage of the component = Mole fraction: Define: Mass Fraction , Mole Fraction , Molality and Molarity
5 Molality Molarity Why do we use molality? Why is it important?

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I MPORTANT TO U NDERSTAND ! 10.2 What is Vapor Pressure? 6
W ATER AT 20 O C 7

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W ATER AT 30 O C 8
W ATER AT 50 O C 9

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W ATER AT 80 O C 10
W ATER AT 100 O C 11

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1. Structure Effects Review chapter 4 – “Like Dissolves Like” concept Polar molecules , water soluble, hydrophilic (water loving) E.g., Vitamins B and C; water-soluble Non-polar molecules , soluble in non-polar molecules, hydrophobic (water fearing) E.g., Vitamins A, D, K and E; fat-soluble 12 Factors Affecting Solubility
F ACTORS A FFECTING S OLUBILITY 1. Structure Effects

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## This note was uploaded on 04/12/2010 for the course CS 1371 taught by Professor Stallworth during the Spring '08 term at Georgia Tech.

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Chapter+10+Notes - CHAPTER 10 SOLUTIONS AND VAPOR PRESSURE...

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