Ascorbic Acid and Sodium Hydroxide

C6H8O6 + NaOH → NaC6H7O6 + H2O

Visão geral

Ascorbic acid (vitamin C) reacts with sodium hydroxide to form sodium ascorbate and water. Despite its name, ascorbic acid is a moderately weak acid (pKa = 4.17) due to the enediol structure that stabilizes the conjugate base through resonance. Sodium ascorbate is better tolerated by the stomach than ascorbic acid.

Participantes

Papel Substância Coeficiente Estado
Reagente Ascorbic Acid C₆H₈O₆ 1 (aq)
Reagente Sodium Hydroxide NaOH 1 (aq)
Produto Water H₂O 1 (l)

Exemplo do cotidiano

Sodium ascorbate supplements are marketed as buffered vitamin C for people who experience stomach upset from regular ascorbic acid tablets.

Importância industrial

O ascorbato de sódio é utilizado como antioxidante alimentar (E301), na cura de carnes para acelerar o desenvolvimento da cor e na fotografia como agente revelador.

Propriedades

Tipo
Acid-Base
Reversível
Não
Energia
Exotérmico
ΔH
-53,0 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 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) Acetic Acid and Sodium Hydroxide Neutralization Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Ascorbic Acid and Sodium Hydroxide?
The balanced equation is: C₆H₈O₆ + NaOH → NaC₆H₇O₆ + H₂O.
What type of reaction is Ascorbic Acid and Sodium Hydroxide?
Ascorbic Acid and Sodium Hydroxide is a acid-base reaction.
Is Ascorbic Acid and Sodium Hydroxide exothermic or endothermic?
Ascorbic Acid and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -53.0 kJ/mol.