Sodium Hydroxide and Hydrochloric Acid Neutralization
NaOH + HCl → NaCl + H2O
Visão geral
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.
Participantes
| Papel | Substância | Coeficiente | Estado |
|---|---|---|---|
| Reagente | Sodium Hydroxide NaOH | 1 | (aq) |
| Reagente | Hydrochloric Acid HCl | 1 | (aq) |
| Produto | Sodium Chloride NaCl | 1 | (aq) |
| Produto | Water H₂O | 1 | (l) |
Exemplo do cotidiano
Antacid tablets neutralize excess stomach acid using a similar type of reaction, though they typically use weaker bases like magnesium hydroxide.
Importância industrial
As reações de neutralização são fundamentais para o tratamento de águas residuais, produção química e processamento alimentar. O controlo preciso do pH nos processos industriais depende desta química.
Propriedades
- Tipo
- Double Replacement
- Reversível
- Não
- Energia
- Exotérmico
- ΔH
- -57,1 kJ/mol
Reações relacionadas
Iron(III) Chloride and Sodium Hydroxide
Calcium Chloride and Sodium Carbonate
Barium Chloride and Sodium Sulfate Precipitation
Calcium Hydroxide and Carbon Dioxide (Limewater Test)
Magnesium Hydroxide and Hydrochloric Acid (Antacid)
Lead Nitrate and Potassium Iodide (Golden Rain)
Copper(II) Sulfate and Sodium Hydroxide
Sodium Hydroxide and Iron(III) Chloride (Rust Color)
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.