Aluminum Hydroxide as Amphoteric Base with HCl

Al(OH)3 + 3HCl → AlCl3 + 3H2O

Visão geral

Aluminum hydroxide dissolves in hydrochloric acid, demonstrating its basic character. As an amphoteric substance, Al(OH)₃ can act as either an acid or a base. With HCl, it donates its hydroxide ions to neutralize the acid. The gelatinous white precipitate dissolves to form a clear solution.

Participantes

Papel Substância Coeficiente Estado
Reagente Aluminum Hydroxide Al(OH)₃ 1 (s)
Reagente Hydrochloric Acid HCl 3 (aq)
Produto Water H₂O 3 (l)

Exemplo do cotidiano

Aluminum hydroxide is the active ingredient in many antacid tablets like Maalox, where it neutralizes stomach acid.

Importância industrial

O hidróxido de alumínio é utilizado na purificação de água como coagulante, como retardador de chama em plásticos e como antiácido farmacêutico.

Propriedades

Tipo
Acid-Base
Reversível
Não
Energia
Exotérmico
ΔH
-170,0 kJ/mol

Reações relacionadas

Hydrochloric Acid and Barium Hydroxide Acetic Acid and Sodium Acetate Buffer System Acetic Acid Dissociation in Water Ammonia and Hydrochloric Acid Ascorbic Acid and Sodium Hydroxide Barium Hydroxide and Ammonium Thiocyanate (Endothermic) Carbonic Acid and Sodium Hydroxide Aluminum Hydroxide as Amphoteric Acid with NaOH Aluminum Chloride and Chloride Ion (Lewis Acid-Base) Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Aluminum Hydroxide as Amphoteric Base with HCl?
The balanced equation is: Al(OH)₃ + 3HCl → AlCl₃ + 3H₂O.
What type of reaction is Aluminum Hydroxide as Amphoteric Base with HCl?
Aluminum Hydroxide as Amphoteric Base with HCl is a acid-base reaction.
Is Aluminum Hydroxide as Amphoteric Base with HCl exothermic or endothermic?
Aluminum Hydroxide as Amphoteric Base with HCl is exothermic (releases energy). The enthalpy change (ΔH) is -170.0 kJ/mol.