Common Oxoacid Compounds and Associated Anions

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-