These salts simply dissociate in water: KCl(s) K + (aq) + Cl - (aq)
Acid-Base Properties of Salts C 2 H 3 O 2 - + H 2 O HC 2 H 3 O 2 + OH- base acid acid base The basic anion can accept a proton from water:
Acid-Base Properties of Salts NH 4 + (aq) NH 3 (aq) + H + (aq) Acid Conjugate Proton base The acidic cation can act as a proton donor:
Acid-Base Properties of Salts IF K a for the acidic ion is greater than K b for the basic ion, the solution is acidic IF K b for the basic ion is greater than K a for the acidic ion, the solution is basic IF K b for the basic ion is equal to K a for the acidic ion, the solution is neutral
Acid-Base Properties of Salts Step #1: AlCl 3 (s) + 6H 2 O Al(H 2 O) 6 3+ (aq) + Cl - (aq) Salt water Complex ion anion Step #2: Al(H 2 O) 6 3+ (aq) Al(OH)(H 2 O) 5 2+ (aq) + H + (aq) Acid Conjugate base Proton
Effect of Structure on Acid-Base Properties Increasing Acidity HypochlorousacidChlorousacidChloricacidPerchloricacid
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