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What is the conjugate base of bisulfite?
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Sodium bisulfite (or sodium bisulphite, sodium hydrogen sulfite) is a chemical mixture with the approximate chemical formula NaHSO 3. Sodium bisulfite in fact is not a real compound, but a mixture of salts that dissolve in water to give solutions composed of sodium and bisulfite ions.
Acid-base reactions. Solutions of bisulfite are typically prepared by treatment of sulfur dioxide with aqueous base: SO 2 + OH − → HSO − 3. HSO − 3 is the conjugate base of sulfurous acid, (H 2 SO 3). HSO − 3 is a weak acidic species with a pK a of 6.97. Its conjugate base is sulfite, SO 2− 3: HSO − 3 ⇌ SO 2− 3 + H +
May 13, 2023 · An acid-base reaction is the transfer of a proton from a proton donor (acid) to a proton acceptor (base). Acids may be compounds such as \(\ce{HCl}\) or \(\ce{H2SO4}\), organic acids like acetic acid (\(\ce{CH_3COOH}\)) or ascorbic acid (vitamin C), or \(\ce{H2O}\).
- Acid-Base Neutralization. A solution is neutral when it contains equal concentrations of hydronium and hydroxide ions. When we mix solutions of an acid and a base, an acid-base neutralization reaction occurs.
- Stomach Antacids. Our stomachs contain a solution of roughly 0.03 M HCl, which helps us digest the food we eat. The burning sensation associated with heartburn is a result of the acid of the stomach leaking through the muscular valve at the top of the stomach into the lower reaches of the esophagus.
- Culinary Aspects of Chemistry. Cooking is essentially synthetic chemistry that happens to be safe to eat. There are a number of examples of acid-base chemistry in the culinary world.
- Salts of Weak Bases and Strong Acids. When we neutralize a weak base with a strong acid, the product is a salt containing the conjugate acid of the weak base.
Aug 17, 2020 · Structure. Image Source. What’re the Uses of Sodium Bisulfite? Food. Generally, food grade sodium bisulfite can be used as an antimicrobial agent and antioxidant in food. It releases sulfur dioxide gas when added to water in acidic conditions, which functions as a preservative to kill microorganisms.
Acid–base reactions require both an acid and a base. In Brønsted–Lowry terms, an acid is a substance that can donate a proton (H + ), and a base is a substance that can accept a proton. All acid–base reactions contain two acid–base pairs: the reactants and the products.
The reverse reaction takes place in presence of a base such as sodium bicarbonate or sodium hydroxide and the bisulfite is liberated as sulfur dioxide. [2] Examples of such procedures are described for benzaldehyde , [3] tetralone, [4] citral , [5] the ethyl ester of pyruvic acid [6] and glyoxal . [7]
