Characterize nitrous acid using different acid classification signs.
| January 19, 2021 | education
Nitrous acid, formula HNO2, based on the presence of oxygen in the acid residue – oxygen-containing, monobasic acid, in which nitrogen has an oxidation state of +3. This acid is weak. It is soluble in water, in aqueous solutions nitrous acid dissociates into ions:
HNO2 ⇄ H + + NO2-.
Nitrous acid is extremely unstable, volatile; when heated, the HNO2 solution decomposes:
3HNO2 = HNO3 + H2O + 2NO ↑.
Under the action of oxidants, nitrous acid is oxidized to nitric acid.
Nitrous acid salts are called nitrites.
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