Sodium Hydroxide and Hydrochloric Acid Neutralization
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NaOH + HCl → NaCl + H2O
Übersicht
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.
Teilnehmer
| Rolle | Substanz | Koeffizient | Zustand |
|---|---|---|---|
| Reaktant | Sodium Hydroxide NaOH | 1 | (aq) |
| Reaktant | Hydrochloric Acid HCl | 1 | (aq) |
| Produkt | Sodium Chloride NaCl | 1 | (aq) |
| Produkt | Water H₂O | 1 | (l) |
Alltägliches Beispiel
Antacid tablets neutralize excess stomach acid using a similar type of reaction, though they typically use weaker bases like magnesium hydroxide.
Industrielle Bedeutung
Neutralization reactions are fundamental to wastewater treatment, chemical manufacturing, and food processing. Precise pH control in industrial processes relies on this chemistry.
Eigenschaften
- Reversibel
- Nein
- Energie
- Exotherm
- ΔH
- -57,1 kJ/mol