Hydrochloric Acid and Sodium Carbonate
2HCl + Na2CO3 → 2NaCl + H2O + CO2
概要
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 | Water H₂O | 1 | (l) |
| 生成物 | Carbon Dioxide CO₂ | 1 | (g) |
| 生成物 | Sodium Chloride NaCl | 2 | (aq) |
日常の例
The fizzing that occurs when washing soda contacts acidic cleaning solutions is due to CO₂ evolution from this reaction.
産業上の重要性
この反応は工業廃液中の酸の中和、ソルベー法による炭酸ナトリウム製造、ガラス・石鹸・紙工業で広く利用される。
特性
- タイプ
- Acid-Base
- 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
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)
Hydrochloric Acid and Sodium Hydroxide Neutralization
Nitric Acid and Potassium Hydroxide Neutralization
Hydrochloric Acid and Barium 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.