Sodium Hydroxide and Hydrochloric Acid Neutralization

NaOH + HCl → NaCl + H2O

Aperçu

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.

Participants

Rôle Substance Coefficient État
Réactif Sodium Hydroxide NaOH 1 (aq)
Réactif Hydrochloric Acid HCl 1 (aq)
Produit Sodium Chloride NaCl 1 (aq)
Produit Water H₂O 1 (l)

Exemple du quotidien

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

Importance industrielle

Neutralization reactions are fundamental to wastewater treatment, chemical manufacturing, and food processing. Precise pH control in industrial processes relies on this chemistry.

Propriétés

Type
Double Replacement
Réversible
Non
Énergie
Exothermique
ΔH
-57,1 kJ/mol

Réactions associées

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.