in-a-diprotic-buffer-system-with-h2a-ha-and-a2-which-form-should-be-used-with-pk

Question

In a diprotic buffer system with H₂A, HA^-, and A^2-, which form should be used with pK_a2 in the Henderson-Hasselbalch equation?

Accepted Answer

HA^- and A^2-

Answer

None of the above

Answer

H₂A and A^2-

Answer

H₂A and HA^-

In a diprotic buffer system with H2A, HA-, and A2-, which form should be used with pKa2 in the Henderson-Hasselbalch equation?