Do the following problems in your textbook on pages 629k-m:
AP Multiple Choice problems # 1-20, and AP Free Response Review questions - both the "SHORT" problems on pg 629m. Note: MC question #4 is confusing; you are NOT ranking the HF, HCN, HClO2, or NH4+ (they are all weak acids, not bases). You are ranking the species in the answer choices (CN-, NH3, F-, etc). You are given those weak acids and their Ka values so you can calculate the Kb values for the corresponing conjugate bases. Ka x Kb = Kw.