Sulfurous Acid and Sodium Hydroxide
H2SO3 + 2NaOH → Na2SO3 + 2H2O
Visão geral
Sulfurous acid reacts with two equivalents of sodium hydroxide to form sodium sulfite and water. Sulfurous acid is formed when sulfur dioxide dissolves in water and is a diprotic acid. It is unstable and cannot be isolated as a pure substance.
Participantes
| Papel | Substância | Coeficiente | Estado |
|---|---|---|---|
| Reagente | Sodium Hydroxide NaOH | 2 | (aq) |
| Produto | Water H₂O | 2 | (l) |
Exemplo do cotidiano
Sodium sulfite is used as a preservative in dried fruits and wine, where it prevents oxidation and browning.
Importância industrial
O sulfito de sódio é utilizado na indústria de pasta e papel, como componente fixador fotográfico, no tratamento de água para descloração e como sequestrador de oxigénio em água de caldeiras.
Propriedades
- Tipo
- Acid-Base
- Reversível
- Não
- Energia
- Exotérmico
- ΔH
- -106,0 kJ/mol
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Frequently Asked Questions
What is the equation for Sulfurous Acid and Sodium Hydroxide?
The balanced equation is: H₂SO₃ + 2NaOH → Na₂SO₃ + 2H₂O.
What type of reaction is Sulfurous Acid and Sodium Hydroxide?
Sulfurous Acid and Sodium Hydroxide is a acid-base reaction.
Is Sulfurous Acid and Sodium Hydroxide exothermic or endothermic?
Sulfurous Acid and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -106.0 kJ/mol.