1. Temperature:  high T: solids more soluble  low T: gases more soluble Pressure:  high P: gases more soluble A. Factors Affecting Solubility

2. CCl 4 H2OH2O C 6 H 14 “Like Dissolves Like” H H H H H H H C C C C C C A. Factors Affecting Solubility Polarity: similar IMAFs dissolve

3. Polar –Polar Polar –Nonpolar A. Factors Affecting Solubility C 27 H 56 HO – CH 2 CH 2 – OH

5. 2) How many grams KClO 3 at 70 o C ? 3) Is 50 g of KCl at 50 o C sat, unsat, or supersat? 1) Highest solubility at 20 o C? 30 o C? 30 g of NaCl at 30 o C?

6. ...  Solids dissolve faster...  more surface area (small particle size) B. Rate of Dissolving 1 gram of sugar solute

7. ...  Solids dissolve faster...  more surface area (small particle size)  more stirring B. Rate of Dissolving

8. ...  Solids dissolve faster...  more surface area (small particle size)  more stirring  high temp. B. Rate of Dissolving

9. ...  Gases dissolve faster...  no stirring  high pressure  low temp. B. Rate of Dissolving

10. 1) Polar water molecules will NOT dissolve… A)polar alcohol molecules B)most ionic compounds C)nonpolar fat molecules D)partially ionized acetic acid molecules

11. 2)For a given substance, which of the following will NOT influence how fast it dissolves? A)temperature B)amount of agitation C)molar mass D)size of the crystals

12. 3)The solubility of a gas in a solvent is affected by? A)both temperature and pressure. B)only pressure C)only temperature D)your face