From the equilibrium concentrations given, calculate $K_a$ for each of the weak acids and $K_b$ for each of

the weak bases.

a$)C_6{H}_{5}N{H}_3^{+}$:$[C_6{H}_{5}N{H}_3^{+}]=0\mathrm{.}25M$;$[C_6{H}_{5}N{H}_2]=2\mathrm{.}3{10}^{-3}M$;$[H_3{O}^{+}]=2\mathrm{.}3{10}^{-3}M$

b$)Cl{O}^{-}$:$[O{H}^{-}]=4\mathrm{.}0{10}^{-4}M$; $[HClO]=2\mathrm{.}38{10}^{-5}M$; $[Cl{O}^{-}]=0\mathrm{.}373M$