14 Solutions - Mr. Coe's Science Class Website @ DHS

14

Solutions

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Chapter Goals

The Dissolution Process 1. Spontaneity of the Dissolution Process 2. Dissolution of Solids in Liquids 3. Dissolution of Liquids in Liquids (Miscibility) 4. Dissolution of Gases in Liquids 5. Rates of Dissolution and Saturation 6. Effect of Temperature on Solubility 7. Effect of Pressure on Solubility 8. Molality and Mole Fraction

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Chapter Goals

Colligative Properties of Solutions 9. Lowering of Vapor Pressure and Raoult's Law 10. Fractional Distillation 11. Boiling Point Elevation 12. Freezing Point Depression 13. Determination of Molecular Weight by Freezing

Point Depression or Boiling Point Elevation 14. Colligative Properties and Dissociation of

Electrolytes 15. Osmotic Pressure

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Chapter Goals

Colloids 16. The Tyndall Effect 17. The Adsorption Phenomena 18. Hydrophilic and Hydrophobic Colloids

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The Dissolution Process

? Solutions are homogeneous mixtures of two or more substances.

? Dissolving medium is called the solvent. ? Dissolved species are called the solute.

? There are three states of matter (solid, liquid, and gas) which when mixed two at a time gives nine different kinds of mixtures.

? Seven of the possibilities can be homogeneous. ? Two of the possibilities must be heterogeneous.

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