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. This table lists common oxoacids and their associated anions.
Common Oxoacids and Assoicated 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- |
