Common Oxoacid Compounds

Acetic Acid

Leyo / Wikimedia Commons / Public Domain

Oxoacids are acids that contain a hydrogen atom bonded to an oxygen atom. These acids dissociate in water by breaking this bond and forming hydronium ions and a polyatomic anion. The table below lists common oxoacids and their associated anions.

Common Oxoacids and Associated Anions

Oxoacid Formula Anion Anion Formula
acetic acid CH3COOH acetate CH3COO-
carbonic acid H2CO3 carbonate CO32-
chloric acid HClO3 chlorate ClO3=
chlorous acid HClO2 chlorite ClO2-
hypochlorous acid HClO hypochlorite ClO-
iodic acid HIO3 iodate IO3-
nitric acid HNO3 nitrate NO3-
nitrous acid HNO2 nitrite NO2-
perchloric acid HClO4 perchlorate ClO4-
phosphoric acid H3PO4 phosphate PO43-
phosphorous acid H3PO3 phosphite PO33-
sulfuric acid H2SO4 sulfate SO42-
sulfurous acid H2SO3 sulfite SO32-
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Your Citation
Helmenstine, Anne Marie, Ph.D. "Common Oxoacid Compounds." ThoughtCo, Aug. 26, 2020, Helmenstine, Anne Marie, Ph.D. (2020, August 26). Common Oxoacid Compounds. Retrieved from Helmenstine, Anne Marie, Ph.D. "Common Oxoacid Compounds." ThoughtCo. (accessed September 26, 2021).