Ascorbic Acid and Sodium Hydroxide
C6H8O6 + NaOH → NaC6H7O6 + H2O
Visão geral
Ascorbic acid (vitamin C) reacts with sodium hydroxide to form sodium ascorbate and water. Despite its name, ascorbic acid is a moderately weak acid (pKa = 4.17) due to the enediol structure that stabilizes the conjugate base through resonance. Sodium ascorbate is better tolerated by the stomach than ascorbic acid.
Participantes
| Papel | Substância | Coeficiente | Estado |
|---|---|---|---|
| Reagente | Ascorbic Acid C₆H₈O₆ | 1 | (aq) |
| Reagente | Sodium Hydroxide NaOH | 1 | (aq) |
| Produto | Water H₂O | 1 | (l) |
Exemplo do cotidiano
Sodium ascorbate supplements are marketed as buffered vitamin C for people who experience stomach upset from regular ascorbic acid tablets.
Importância industrial
O ascorbato de sódio é utilizado como antioxidante alimentar (E301), na cura de carnes para acelerar o desenvolvimento da cor e na fotografia como agente revelador.
Propriedades
- Tipo
- Acid-Base
- Reversível
- Não
- Energia
- Exotérmico
- ΔH
- -53,0 kJ/mol
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Frequently Asked Questions
What is the equation for Ascorbic Acid and Sodium Hydroxide?
The balanced equation is: C₆H₈O₆ + NaOH → NaC₆H₇O₆ + H₂O.
What type of reaction is Ascorbic Acid and Sodium Hydroxide?
Ascorbic Acid and Sodium Hydroxide is a acid-base reaction.
Is Ascorbic Acid and Sodium Hydroxide exothermic or endothermic?
Ascorbic Acid and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -53.0 kJ/mol.