Sodium Carbonate and Hydrochloric Acid

Na₂CO₃ + 2HCl → 2NaCl + H₂O + CO₂

Visão geral

Sodium carbonate reacts with hydrochloric acid to produce sodium chloride, water, and carbon dioxide gas. The effervescence from CO2 evolution is a characteristic feature. This reaction is used to test for carbonate ions and occurs in two stages through bicarbonate intermediate.

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

Cleaning products containing sodium carbonate fizz when they contact acidic substances like vinegar, due to this CO2-producing reaction.

Importância industrial

Utilizado no processo Solvay, no amaciamento de água e em formulações de detergentes. A reação é também utilizada para neutralizar derrames de ácido de forma segura.

Propriedades

Tipo: Double Replacement
Reversível: Não
Energia: Exotérmico
ΔH: -24,3 kJ/mol

Reações relacionadas

Iron(III) Chloride and Sodium Hydroxide Ammonia and Hydrochloric Acid (White Smoke) Calcium Carbonate and Hydrochloric Acid Calcium Chloride and Sodium Carbonate Barium Chloride and Sodium Sulfate Precipitation Calcium Hydroxide and Carbon Dioxide (Limewater Test) Sodium Hydroxide and Iron(III) Chloride (Rust Color) Sodium Hydroxide and Hydrochloric Acid Neutralization Potassium Hydroxide and Sulfuric Acid Aluminum Hydroxide and Hydrochloric Acid

Frequently Asked Questions

What is the equation for Sodium Carbonate and Hydrochloric Acid?

The balanced equation is: Na₂CO₃ + 2HCl → 2NaCl + H₂O + CO₂.

What type of reaction is Sodium Carbonate and Hydrochloric Acid?

Sodium Carbonate and Hydrochloric Acid is a double replacement reaction.

Is Sodium Carbonate and Hydrochloric Acid exothermic or endothermic?

Sodium Carbonate and Hydrochloric Acid is exothermic (releases energy). The enthalpy change (ΔH) is -24.3 kJ/mol.