Question

Consider the diprotic acid H2A with K1 1*10^-3 and K2= 1*10^-9 .
Find pH, [H2A], [HA], and [A2-] for a .2000M solution of H2A

b)Find pH, [H2A], [HA], and [A2-] for a .200M solution of HA-

c) Find pH, [H2A], [HA], and [A2-] for a .200M solution of A-