1. Was the Wicked Witch a good chemistry student? Did she correctly and scientifically describe her demise? 1 Question of the Day Day 5 1-22

2. How can we predict the solubility of a salt based on its ions?

3. 1.What volume of 10 M HCl must be diluted to prepare 500 mL of 1 M HCl? 2.Barium hydroxide has a low solubility, but is considered a strong electrolyte. Explain how this is possible. 3 Question of the Day Day 6 1-23

4. ASSIGNMENT : Page 548 #s 48, 50, 57, 58, 59, 60 (a and b) – due Friday 1-23 4

6. C.Examples Write the molecular, complete, and net ionic equations for these reactions that occur in water. 3.Chromium(II) acetate and nitric acid 6

7. C.Examples Write the molecular, complete, and net ionic equations for these reactions that occur in water. 4.Barium nitrate and sulfuric acid 7

9. Last week you did the following example (in your notes): Write the molecular, complete, and net ionic equations for these reactions that occur in water. Barium nitrate and sulfuric acid What are the spectator ions? 9 Day 1 1-28

10. 10 Assignment LAB Solubility Rules Handout

11. Solution Formation What factors affect how fast a substance dissolves?

12. Which dissolves faster sugar cubes or granulated sugar? Why the stirring? Sugar dissolves faster in hot / iced tea? Solution Formation

13. The compositions of the solvent and the solute determine whether or not a substance will dissolve. Factors that affect how fast a substance dissolves include: Agitation Temperature Particle size of the solute Like Dissolves Like

14. Solution Formation Agitation Agitation (stirring or shaking) affects only the rate at which a solid solute dissolves. It does not influence the amount of solute that will dissolve. Agitation increases the rate of dissolving

15. Solution Formation Higher temperatures lead to an increased rate of dissolving. Temperature At higher temperatures, the kinetic energy of molecules is greater than at lower temperatures, so the molecules move (and mix) faster.

16. Solution Formation Particle Size of the Solute Smaller particles expose a greater surface area and so increase rate of dissolving. The more surface area of the solute that is exposed, the faster the rate of dissolving.

17. Which of the following will not speed up the rate at which a solid solute dissolves? A.Increasing the temperature B.Stirring the mixture C.Crushing the solute D.Decreasing the temperature

18. 18 Assignment Solubility Rules Handout

19. 19 Quick Draw Molarity Net ionic equation Solute Dissociating Diprotic acids Spectator ions V c M c =V d M d electrolyte Strong acids mols/L salts Weak base

21. QUICK TALK NH 3 Disperse Strong base Hydrogen bonding Solute Molecular equation Molarity Weak acid Solvent Tincture V c M c = V d M d Monoprotic

22. 22

23. 23 Double Pd 1 2-1 Prepare 150 ml of 0.1M solutions of: BaCl 2 CaCl 2 SrCl 2 LiCl