Monobasic, Dibasic and Tribasic Acids

Monobasic Acids also know as monoprotic acids

These are acids which yield one free hydrogen ion in solution for each molecule of acid ionized. An example of a monobasic acid is hydrochloric acid (HCl).
HCl → H+ + Cl -

Dibasic Acids also know as diprotic acids
These are acids which yield two free hydrogen ions in solution for each molecule of acid ionized. An example of a dibasic acid is sulphuric acid H2SO4.
H2SO4 → 2H+ + SO42-

Tribasic Acids also know as triprotic acids
These are acids which yield three free hydrogen ions in solution for each molecule of acid ionized. An example of a tribasic acid is phosphoric acid (H3PO4).
H3PO4 → 3H + + PO43-

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