Hydrochloric Acid and Sodium Carbonate

2HCl + Na2CO3 → 2NaCl + H2O + CO2

Visão geral

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

Papel Substância Coeficiente Estado
Reagente Sodium Carbonate Na₂CO₃ 1 (s)
Reagente Hydrochloric Acid HCl 2 (aq)
Produto Carbon Dioxide CO₂ 1 (g)
Produto Water H₂O 1 (l)
Produto Sodium Chloride NaCl 2 (aq)

Exemplo do cotidiano

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

Importância industrial

Esta reação é utilizada para neutralizar correntes de resíduos ácidos na indústria, no processo Solvay e em laboratórios de química. O carbonato de sódio (soda) é um dos produtos químicos industriais mais baratos para neutralização de ácidos.

Propriedades

Tipo
Acid-Base
Reversível
Não
Energia
Exotérmico
ΔH
-24,3 kJ/mol

Reações relacionadas

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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.