Explain the difference between a diprotic and triprotic acid.

Question

How does each acid ionise in water?

- I understand the difference between a diprotic and triprotic acid, though I haven't found how each acid ionises in water through extensive research.

Thanks.

Answer 1

Diprotic is H2A. It ionizes in two steps.
H2A ==> H^+ + HA^- and
HA^- ==> H^+ + A^2-

The triprotic is H3A and it ionizes in 3 steps.