Sodium Carbonate and Hydrochloric Acid

Na₂CO₃ + 2HCl → 2NaCl + H₂O + CO₂

Aperçu

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.

Participants

Rôle	Substance	Coefficient	État
Réactif	Sodium Carbonate Na₂CO₃	1	(s)
Réactif	Hydrochloric Acid HCl	2	(aq)
Produit	Carbon Dioxide CO₂	1	(g)
Produit	Water H₂O	1	(l)
Produit	Sodium Chloride NaCl	2	(aq)

Exemple du quotidien

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

Importance industrielle

Used in the Solvay process, in water softening, and in detergent formulations. The reaction is also used to neutralize acid spills safely.

Propriétés

Type: Double Replacement
Réversible: Non
Énergie: Exothermique
ΔH: -24,3 kJ/mol

Réactions associées

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.