Problem- The triprotic acid H3A has ionization constants of Ka1 = 2.0*10^-3, Ka2 = 8.9*10^-9, and Ka3 = 3.9*10^-11.
1. Calculate the following values for a 0.0190 M solution of NaH2A. [H+] and [H2A-]/[H3A]
2. Calculate the following values for a 0.0190 M solution of Na2HA. [H+] and [HA^2-]/[H2A-]
Here is the problem which I am struggling on, please help me!