1. Coupling reactions involving diazonium salts and phenol or aniline result in the formation of azo compounds. In these reactions, the diazonium salt reacts with phenol or aniline to produce an azo dye. The coupling occurs through the nitrogen of the diazo group (-N₂⁺) bonding to the carbon of the aroRead more

    Coupling reactions involving diazonium salts and phenol or aniline result in the formation of azo compounds. In these reactions, the diazonium salt reacts with phenol or aniline to produce an azo dye. The coupling occurs through the nitrogen of the diazo group (-N₂⁺) bonding to the carbon of the aromatic ring, creating a colored compound. This transformation is an example of electrophilic aromatic substitution, where the diazonium cation serves as an electrophile, and the aromatic ring of phenol or aniline acts as a nucleophile. These coupling reactions are pivotal in the synthesis of vibrant and diverse azo dyes.

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  2. Besides its use in baking as a leavening agent, sodium hydrogen carbonate, or baking soda, serves various purposes. It is employed as a household cleaner and deodorizer due to its ability to neutralize odors. In fire extinguishers, sodium hydrogen carbonate releases carbon dioxide upon heating, suppRead more

    Besides its use in baking as a leavening agent, sodium hydrogen carbonate, or baking soda, serves various purposes. It is employed as a household cleaner and deodorizer due to its ability to neutralize odors. In fire extinguishers, sodium hydrogen carbonate releases carbon dioxide upon heating, suppressing flames by displacing oxygen. It’s also utilized in personal care, acting as an antacid to alleviate indigestion and heartburn. In certain medical applications, such as first aid for acid burns, it can neutralize acids. The versatility of sodium hydrogen carbonate extends beyond the kitchen, making it a valuable compound in various everyday scenarios.

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  3. Sodium hydrogen carbonate plays a crucial role in soda-acid fire extinguishers as the base component. In these extinguishers, a mixture of sodium hydrogen carbonate (baking soda) and a weak acid (typically tartaric acid) is stored separately. When the extinguisher is activated, a breaking mechanismRead more

    Sodium hydrogen carbonate plays a crucial role in soda-acid fire extinguishers as the base component. In these extinguishers, a mixture of sodium hydrogen carbonate (baking soda) and a weak acid (typically tartaric acid) is stored separately. When the extinguisher is activated, a breaking mechanism releases the acid, initiating a chemical reaction. The acid reacts with sodium hydrogen carbonate, producing carbon dioxide gas. The rapid generation of carbon dioxide pressurizes the extinguisher and expels a solution of water, dissolved sodium carbonate, and the produced carbon dioxide. This effectively suppresses the fire by displacing oxygen and cooling the surrounding area.

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  4. Sodium hydrogen carbonate, or baking soda, functions as an antacid by neutralizing excess stomach acid. When ingested, it reacts with the acidic gastric contents, producing carbon dioxide, water, and salt. This reaction increases the pH of the stomach, providing relief from symptoms of indigestion,Read more

    Sodium hydrogen carbonate, or baking soda, functions as an antacid by neutralizing excess stomach acid. When ingested, it reacts with the acidic gastric contents, producing carbon dioxide, water, and salt. This reaction increases the pH of the stomach, providing relief from symptoms of indigestion, heartburn, or acid reflux. The carbon dioxide produced can also promote burping, helping to expel gas. While it offers temporary relief, excessive or frequent use is cautioned due to the sodium content, and individuals with certain medical conditions should consult healthcare professionals before using sodium hydrogen carbonate as an antacid.

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  5. Washing soda (sodium carbonate decahydrate - Na₂CO₃·10H₂O) is obtained from sodium chloride through the Solvay process. In this method, ammonia (NH₃) reacts with carbon dioxide (CO₂) to form ammonium bicarbonate (NH₄HCO₃). This ammonium bicarbonate then reacts with sodium chloride (NaCl) in a solutiRead more

    Washing soda (sodium carbonate decahydrate – Na₂CO₃·10H₂O) is obtained from sodium chloride through the Solvay process. In this method, ammonia (NH₃) reacts with carbon dioxide (CO₂) to form ammonium bicarbonate (NH₄HCO₃). This ammonium bicarbonate then reacts with sodium chloride (NaCl) in a solution to produce sodium bicarbonate (NaHCO₃) and ammonium chloride (NH₄Cl). Sodium bicarbonate is separated and then heated, resulting in the release of water and carbon dioxide, leaving behind anhydrous sodium carbonate (soda ash). By crystallizing soda ash from a solution, washing soda is obtained when it incorporates ten water molecules, forming Na₂CO₃·10H₂O.

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