2009-10-10

Study Pointers for Chem 3 Perio

1. MAKE SURE YOU UNDERSTAND ALL CONCEPTS THAT WERE DISCUSSED
 When is a chemical reaction in a state of equilibrium?
 What factors affect a system in equilibrium? How does each factor affect the direction of the reaction, the amount of reactants and products, and the value of Keq?
 What are the different definitions of acids and bases and how do they differ?
 What acid strength trends are followed by binary acids? Oxo/oxyacids?
 Why do aqueous solution of salts exhibit acidic, basic, or neutral properties?

2. MAKE SURE YOU KNOW HOW TO…
 Write Keq expression (Kc and Kp) for homogenous and heterogeneous reaction
 Relate Kc and Kp
 Solve Keq problems
 Determine the direction of a system approaching equilibrium (Q vs. Keq)
 Solve for new Keq when a given reaction is manipulated
 Solve for hydronium and hydroxide concentrations, pH and pOH of strong and weak acids and bases.
 Solve for % ionization/dissociation