Important Definition for Acids

Sodium hydroxide

Important Definition for Acids
Monoprotic acid (monobasic acid) is an acid which produce one mole of H⁺ ion when one mole of the acid ionise in water.

Monoprotic acid	Monoprotic acid name
HCl	Hydrochloric acid
HNO3	Nitric acid
CH3COOH	Ethanoic acid

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Polyprotic acids

Diprotic acid (dibasic acid) is an acid which produce two moles of H⁺ ios from one mole of the acid in water.

Diprotic acid	Diprotic acid name
H2SO4	Sulphuric acid
H2CO3	Carbonic acid
H2CrO4	Chromic acid
H2C2O4	Ethanedioic acid / Oxalate acid

Triprotic acid (tribasic acid) is an acid which produce three moles of H⁺ ions from one mole of the acid in water.

Triprotic acid	Triprotic acid name
H3PO4	Phosphoric acid
C6H8O7	Citric acid