Common Oxoacid Compounds

Acetic Acid

Leyo / Wikimedia Commons / Public Domain
By
Anne Marie Helmenstine, Ph.D.
Anne Marie Helmenstine, Ph.D.
Chemistry Expert
  • Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
  • B.A., Physics and Mathematics, Hastings College
Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels.
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Updated on October 22, 2019

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.

Phosphoric acid diagram
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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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Helmenstine, Anne Marie, Ph.D. "Common Oxoacid Compounds." ThoughtCo, Aug. 26, 2020, thoughtco.com/common-oxoacid-compounds-603963. Helmenstine, Anne Marie, Ph.D. (2020, August 26). Common Oxoacid Compounds. Retrieved from https://www.thoughtco.com/common-oxoacid-compounds-603963 Helmenstine, Anne Marie, Ph.D. "Common Oxoacid Compounds." ThoughtCo. https://www.thoughtco.com/common-oxoacid-compounds-603963 (accessed April 25, 2024).