Sulfurous Acid and Sodium Hydroxide

H₂SO₃ + 2NaOH → Na₂SO₃ + 2H₂O

Descripción general

Sulfurous acid reacts with two equivalents of sodium hydroxide to form sodium sulfite and water. Sulfurous acid is formed when sulfur dioxide dissolves in water and is a diprotic acid. It is unstable and cannot be isolated as a pure substance.

Participantes

Rol	Sustancia	Coeficiente	Estado
Reactivo	Sodium Hydroxide NaOH	2	(aq)
Producto	Water H₂O	2	(l)

Ejemplo cotidiano

Sodium sulfite is used as a preservative in dried fruits and wine, where it prevents oxidation and browning.

Importancia industrial

Relevante en la producción de conservantes alimentarios (sulfitos) y en el proceso Kraft de producción de papel.

Propiedades

Tipo: Acid-Base
Reversible: No
Energía: Exotérmico
ΔH: -106,0 kJ/mol

Reacciones 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 Sulfurous Acid and Sodium Hydroxide?

The balanced equation is: H₂SO₃ + 2NaOH → Na₂SO₃ + 2H₂O.

What type of reaction is Sulfurous Acid and Sodium Hydroxide?

Sulfurous Acid and Sodium Hydroxide is a acid-base reaction.

Is Sulfurous Acid and Sodium Hydroxide exothermic or endothermic?

Sulfurous Acid and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -106.0 kJ/mol.