Hydrochloric Acid and Sodium Carbonate

2HCl + Na2CO3 → 2NaCl + H2O + CO2

Tổng quan

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.

Người tham gia

Vai trò Chất Hệ số Trạng thái
Chất phản ứng Sodium Carbonate Na₂CO₃ 1 (s)
Chất phản ứng Hydrochloric Acid HCl 2 (aq)
Sản phẩm Carbon Dioxide CO₂ 1 (g)
Sản phẩm Water H₂O 1 (l)
Sản phẩm Sodium Chloride NaCl 2 (aq)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

This reaction is used to neutralize acid waste streams in industry, in the Solvay process for sodium carbonate production, and in water treatment.

Tính chất

Loại
Acid-Base
Thuận nghịch
Không
Năng lượng
Tỏa nhiệt
ΔH
-24,3 kJ/mol

Phản ứng liên quan

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 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.