1 of 3
  1. In general, acid + $H_2O \rightleftharpoons$ base + $H_3O^+$
  2. It is called the henderson-hasselbach equation $pH = pK_a + log\frac{[base]}{[acid]}$
  3. I believe the equilibrium constant for a such a neutralisation would look like $K_n = K_aK_b\frac{1}{K_w}$