Is KOH an acid or base?

Arrhenius’ definition is that states a base is any compound that donates an OH- ion to solution. Brønsted Lowry definition is for the base to accept a proton from an acid.

Potassium hydroxide is certainly a base. Any chemical substance can either be acidic (strongly or weakly), neutral, or basic (strongly or weakly). The dissociation reaction is

KOH → K+ + OH-.

Because this is a strong base

Acids are H+ (proton) donors

Bases are OH (hydroxyl ion) donors

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