1. Initial concentration of N2H4CO fertilizer, is 1.95 M and K = 1.5x 10^ -14

N2H4CO (aq) + H2O(l) ⇋ H2NCONH3 ^+ (aq) + OHˉ(aq)

2. Initial concentration of 4.25 M aniline, C6H5NH2 with Kb = 3.8 x 10^-10

C6H5NH2 (aq) + H2O(l) ⇋ C6H5NH3 ^+(aq) + OHˉ(aq)