Phosphoric acid (H3PO4) is a weak triprotic acid, meaning it can donate three protons (H+) and it will have three equilibrium reactions.
Removing one H+ per step in H3PO4:
Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (I) or (aq), are optional.
Each successive ionization reaction removes an H+ ion, so the final reaction should produce the unprotonated PO43- ion.
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