Sodium Carbonate and Hydrochloric Acid

Na2CO3 + 2HCl → 2NaCl + H2O + CO2

概要

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.

参加者

役割 物質 係数 状態
反応物 Sodium Carbonate Na₂CO₃ 1 (s)
反応物 Hydrochloric Acid HCl 2 (aq)
生成物 Carbon Dioxide CO₂ 1 (g)
生成物 Water H₂O 1 (l)
生成物 Sodium Chloride NaCl 2 (aq)

日常の例

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

産業上の重要性

ソルベー法、水軟化、洗剤製造に使用される。酸の流出を安全に中和するためにも利用される。

特性

タイプ
Double Replacement
可逆的
いいえ
エネルギー
発熱性
ΔH
-24.3 kJ/mol

関連する反応

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.