S

Strong Acid

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Also Known AsFully dissociating acid, strong mineral acid

What is Strong Acid?

An acid that completely dissociates into ions in aqueous solution. Examples include HCl, HBr, HI, HNO₃, H₂SO₄, and HClO₄. In dilute solutions, virtually no undissociated acid molecules remain. The conjugate base of a strong acid is a very weak base.

Properties & Characteristics

A strong acid is one that completely dissociates into its constituent ions in aqueous solution. Common examples include HCl, HBr, HI, HNO₃, H₂SO₄, and HClO₄. Because dissociation is complete, the concentration of H⁺ (or H₃O⁺) equals the initial acid concentration. Strong acids have very negative pKa values.

Uses & Applications

Strong acids are used in industrial processes including metal cleaning (pickling), fertiliser production (H₂SO₄ in superphosphate), and chemical synthesis. They are used in analytical chemistry for standardised titrations. Hydrochloric acid is used in food processing and pharmaceuticals.

Safety Information

Strong acids are highly corrosive and cause severe burns to skin, eyes, and mucous membranes. They must be stored in appropriate containers, handled with personal protective equipment, and diluted carefully by adding acid to water, never the reverse.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Strong Acid
Synonyms Fully dissociating acid, strong mineral acid

Frequently Asked Questions

An acid that completely dissociates into ions in aqueous solution. Examples include HCl, HBr, HI, HNO₃, H₂SO₄, and HClO₄. In dilute solutions, virtually no undissociated acid molecules remain. The conjugate base of a strong acid is a very weak base.

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