(A) The organic bases cocaine (pK_b = 8.41) and codeine (pK_b = 7.95) react with hydrochloric acid to form salts (similar to the formation of NH₄Cl by the reaction of NH₃ and HCl). If solutions of the following salts have the same molarity, which solution would have the higher pH: cocaine hydrochloride, C₁₇H₂₁O₄NH⁺Cl^-, or codeine hydrochloride, C₁₈H₂₁ClO₃NH⁺Cl^-?

(B) Predict whether the solution NH₄CN(aq) is acidic, basic, or neutral; and explain the basis of your prediction.