Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.400 M phosphoric acid solution.
[H3PO4]=
[H2PO4]=
[HPO4]=
[PO4]=
[H]=
[OH]=
pH=