Chapter 13 Test

On Monday, January 24th, 2010 the Chapter 13 Test will be given in class. The test will consist of 21 multiple choice questions and three free response questions. Please make sure to go over the practice exam given out last week in class. A solutions guide is supplied on the Events Calendar under the date January 18th. You will be supplied with an equations sheet and periodic table from the AP Chemistry exam. Please look over the highlights below of what you should have committed to memory before the exam.

Know the now BIG FIVE solubility rules.

1. All nitrate ionic compounds are soluble.
2. All alkali ion (group 1A of the periodic table) ionic compounds are soluble.
3. All ammonium (NH4^+1) ionic compounds are soluble.
4. All chloride (Cl^-1), bromide (Br^-1), and iodide (I^-1) ionic compounds are soluble except for silver ion (Ag^+1) and lead (II) ion (Pb^+2) compounds.
5. All acetate (C2H3O2^-1 OR CH3COO^-1) ionic compounds are soluble except for silver ion (Ag^+1) and mercury (I) ion (Hg^+1) compounds.

Knowledge of the solubility rules can be applied in a number of different ways. If a compound does not fit the solubility of one of the rules above, assume the substance to be insoluble (solid forms).

For spectrophotometry (light absorbance) to be applicable for concentration determination, remember that the solution must be colored. A good rule of thumb is if a compound contains a transition metal, it is colored. (The exceptions to this rule being silver and zinc.)

Study hard. This is the first test of the semester, so it will be a major portion of your grade.