No class.

We reviewed the Arrhenius theory of acids and bases, and learned about the Bronsted-Lowry Theory.  Consult the text, p.528-532.
Homework:  p.532 #1-3

Test day.  Complete the Ksp lab reports and hand them in tomorrow.

Prepare for your test tomorrow.  Review questions are on the 12/09/2010 homework posting.  Don't forget to complete your lab report for the Ksp lab - they are due Thursday.

If you try to dissolve some calcium carbonate into a solution of sodium carbonate, even less than usual will dissolve, because there is already carbonate ion present.  This shifts the dissociation equilibrium of calcium carbonate towards the solid so less dissolves.  Refer to text p.490-492.
Homework:  p.492 #8, 9, 11, 12

We conducted an experiment to find Ksp of calcium hydroxide.  The instructions and rubric are on the unit 4 page of this site.  Each person is to hand the report in no later than Thursday, Dec.16, 2010.

Although a product of a double displacement reaction may form a precipitate according to the solubility table, concentrations of the ions may be low enough that no precipitate actually forms.  Refer to p.487-490 in the text for help. 
The unit test will be next Wed., Dec.15, 2010.
Homework:  p.489 #5, 6; p.493 #10
Review for test:  p.493 #11;  p.522 #1-3, 5, 9, 10-18;  p.523-5 #5, 10, 13, 14, 15ac, 16-18;  p.640 #19

A special kind of equilibrium constant is used when an ionic compound dissolves in water by dissociation.  The text reference is p.482-486.
Homework:  Read p.482-483 and answer p.486 #2-4

If you get a cubic equation to solve from an ICE table problem in which K is very small, then you make assumptions to simplify the equation.  Read the examples in the text on p.472-475.
Homework:  p.476 #7, 8; p.481 #4

Given initial concentrations and the K value, you can calculate equilibrium concentrations of substances in an equilibrium system.  Refer to the examples in the text on p.469-470 and p.476-478 on how to use an ICE table.
Homework:  p.481 #2, 5, 6ab, 7