Hydrochloric Acid and Sodium Carbonate

2HCl + Na2CO3 → 2NaCl + H2O + CO2

概述

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.

参与者

角色 物质 系数 状态
反应物 Sodium Carbonate Na₂CO₃ 1 (s)
反应物 Hydrochloric Acid HCl 2 (aq)
产物 Carbon Dioxide CO₂ 1 (g)
产物 Water H₂O 1 (l)
产物 Sodium Chloride NaCl 2 (aq)

日常示例

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

工业重要性

碳酸钠（纯碱）是中和工业酸废水的常用中和剂，也是索尔维法制碱工艺的产物，全球年产纯碱约5000万吨，用于玻璃、洗涤剂和化工生产。

属性

类型
Acid-Base
可逆
否
能量
放热
ΔH
-24.3 kJ/mol

相关反应

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.