1. S OLUBILITY November 24, 2011 SCH 3U1

2. F ACTORS A FFECTING S OLUBILITY 2

3. S OLUBILITY Measures mass of a solute that can dissolve in a specific solvent at a certain temperature. 3

4. 4 Water Cyclohexane C 6 H 6 CoCl 2 I2I2 Sucrose (C 12 H 22 O 11 ) POLAR NON POLAR SolubleInsoluble Soluble Insoluble

5. Solutes dissolve in a solvent with similar forces of attraction 5 Sucrose has 8 polar OH groups able to form hydrogen bonds with water

6. 2. M OLECULE S IZE Molecules with small non-polar sections can be soluble in polar solvents 6 Decreasing solubility Effect of polar OH predominates Effect of non-polar portion predominates miscible

7. 3. T EMPERATURE Solubility of a solid solute in a liquid solvent usually increases with temperature 7

8. 3. T EMPERATURE Solubility of most gases in most liquid solvents decreases with an increase in temperature 8

9. 4. P RESSURE Increased pressure of a gas above a liquid solvent increases the solubility of that particular gas 9

10. H OMEWORK Introduction to Solutions Questions (from Wed) Solubility Questions Solubility Curve Assignment (Due Monday) 10