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AP Chemistry
Nitrous acid (HNO2) is a weak acid formed by dissolving nitrogen dioxide gas in water. It can act as both an oxidizing agent and reducing agent.
Acidic Solution: A solution containing more hydrogen ions (H+) than hydroxide ions (OH-).
Weak Acid: An acid that does not completely dissociate into its ions in solution.
Dissociation Constant (Ka): A measure of how much an acid ionizes or dissociates in water.