Ascorbic Acid and Sodium Hydroxide
C6H8O6 + NaOH → NaC6H7O6 + H2O
Tổng quan
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.
Người tham gia
| Vai trò | Chất | Hệ số | Trạng thái |
|---|---|---|---|
| Chất phản ứng | Ascorbic Acid C₆H₈O₆ | 1 | (aq) |
| Chất phản ứng | Sodium Hydroxide NaOH | 1 | (aq) |
| Sản phẩm | Water H₂O | 1 | (l) |
Ví dụ thực tế
Sodium ascorbate supplements are marketed as buffered vitamin C for people who experience stomach upset from regular ascorbic acid tablets.
Tầm quan trọng công nghiệp
Sodium ascorbate is used as a food antioxidant (E301), in meat curing to accelerate color development, and in photography as a developing agent.
Tính chất
- Loại
- Acid-Base
- Thuận nghịch
- Không
- Năng lượng
- Tỏa nhiệt
- ΔH
- -53,0 kJ/mol
Phản ứng liên quan
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Ammonia and Hydrochloric Acid
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Carbonic Acid and Sodium Hydroxide
Aluminum Hydroxide as Amphoteric Acid with NaOH
Aluminum Chloride and Chloride Ion (Lewis Acid-Base)
Hydrochloric Acid and Sodium Hydroxide Neutralization
Nitric Acid and Potassium Hydroxide Neutralization
Magnesium Hydroxide and Hydrochloric Acid (Milk of Magnesia)
Hydrochloric Acid and Barium Hydroxide
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.