Hydrochloric Acid and Sodium Carbonate

2HCl + Na2CO3 → 2NaCl + H2O + CO2

Descripción general

Hydrochloric acid reacts with sodium carbonate (washing soda) to produce sodium chloride, water, and carbon dioxide gas. The carbonate ion is a Brønsted base that accepts two protons. The reaction proceeds in two steps: first forming bicarbonate, then decomposing carbonic acid to CO₂ and water.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Sodium Carbonate Na₂CO₃ 1 (s)
Reactivo Hydrochloric Acid HCl 2 (aq)
Producto Carbon Dioxide CO₂ 1 (g)
Producto Water H₂O 1 (l)
Producto Sodium Chloride NaCl 2 (aq)

Ejemplo cotidiano

The fizzing that occurs when washing soda contacts acidic cleaning solutions is due to CO₂ evolution from this reaction.

Importancia industrial

Esta reacción se usa para neutralizar corrientes de residuos ácidos en la industria, en el proceso Solvay para la producción de carbonato de sodio y en el tratamiento de aguas residuales.

Propiedades

Tipo
Acid-Base
Reversible
No
Energía
Exotérmico
ΔH
-24,3 kJ/mol

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Frequently Asked Questions

What is the equation for Hydrochloric Acid and Sodium Carbonate?
The balanced equation is: 2HCl + Na₂CO₃ → 2NaCl + H₂O + CO₂.
What type of reaction is Hydrochloric Acid and Sodium Carbonate?
Hydrochloric Acid and Sodium Carbonate is a acid-base reaction.
Is Hydrochloric Acid and Sodium Carbonate exothermic or endothermic?
Hydrochloric Acid and Sodium Carbonate is exothermic (releases energy). The enthalpy change (ΔH) is -24.3 kJ/mol.