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Reaction with Sodium Hydroxide

AQA A-level ChemistryTransition MetalsLesson 18 of 21

Deprotonation is a reaction in which a base removes a proton from a species. Hexaaqua (II) ions react with water, a weak base, to release H+ ions. The reaction is reversible and the equilibrium is to the left, so the solution with water is weakly acidic as [M(OH)(H2O)5]+ ions are formed along with H3O+ ions.

Diagram

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Key terms in this lesson

amphoteric
Able to react as both an acid and a base, for example by dissolving in both acids and alkalis.

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