Sulfuric Acid : Production, Properties and Uses
Properties of Sulfuric Acid (H2SO4)
- Sulfuric acid is a diprotic acid
(can donate 2 protons to a base)
- Sulfuric acid ionises (dissociates) in water in two stages:
(i) H2SO4(l) + H2O(l) → HSO4-(aq) + H3O+(aq)
(ii) HSO4-(aq) + H2O(l) SO42-(aq) + H3O+(aq)
- Sulfuric acid is a strong acid
(complete dissociation in water, Ka approaches infinity)
- Sulfuric acid reactions:
sulfuric acid + metal → metal sulfate + hydrogen gas
sulfuric acid + carbonate → metal sulfate + carbon dioxide gas + water
sulfuric acid + base → salt + water
sulfuric acid + ammonia → ammonium sulfate
- Sulfuric acid can take part in redox reactions.
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