Sodium Carbonate and Hydrochloric Acid

Na2CO3 + 2HCl → 2NaCl + H2O + CO2

Tổng quan

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.

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

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

Tầm quan trọng công nghiệp

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

Tính chất

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

Phản ứng liên quan

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.