Sodium Hydroxide and Hydrochloric Acid Neutralization

NaOH + HCl → NaCl + H2O

概述

Sodium hydroxide reacts with hydrochloric acid to produce sodium chloride and water. This is the archetypal neutralization reaction, producing exactly neutral pH 7 solution because both the acid and base are strong. The heat of neutralization is approximately -57.1 kJ/mol for any strong acid-strong base pair.

参与者

角色 物质 系数 状态
反应物 Sodium Hydroxide NaOH 1 (aq)
反应物 Hydrochloric Acid HCl 1 (aq)
产物 Sodium Chloride NaCl 1 (aq)
产物 Water H₂O 1 (l)

日常示例

Antacid tablets neutralize excess stomach acid using a similar type of reaction, though they typically use weaker bases like magnesium hydroxide.

工业重要性

中和反应是工业废水处理的基础工艺，用于调节工厂排放物的pH，确保达到环保排放标准。

属性

类型
Double Replacement
可逆
否
能量
放热
ΔH
-57.1 kJ/mol

相关反应

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) Potassium Hydroxide and Sulfuric Acid Sodium Carbonate and Hydrochloric Acid Aluminum Hydroxide and Hydrochloric Acid

Frequently Asked Questions

What is the equation for Sodium Hydroxide and Hydrochloric Acid Neutralization?
The balanced equation is: NaOH + HCl → NaCl + H₂O.
What type of reaction is Sodium Hydroxide and Hydrochloric Acid Neutralization?
Sodium Hydroxide and Hydrochloric Acid Neutralization is a double replacement reaction.
Is Sodium Hydroxide and Hydrochloric Acid Neutralization exothermic or endothermic?
Sodium Hydroxide and Hydrochloric Acid Neutralization is exothermic (releases energy). The enthalpy change (ΔH) is -57.1 kJ/mol.