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A basic buffer, also known as an alkaline buffer, is a solution that resists changes in pH when small amounts of acid are added to it. A basic buffer typically consists of a weak base and its conjugate acid, which are in equilibrium with each other.
When an acid is added to a basic buffer, the weak base in the buffer reacts with the acid to form its conjugate acid, which neutralizes some of the added acid. This reaction prevents the pH of the solution from decreasing significantly, as the buffer system maintains the balance between the weak base and its conjugate acid.
For example, a basic buffer can be made by mixing ammonia (NH3) and ammonium chloride (NH4Cl) in water. In this solution, NH3 acts as the weak base, while NH4+ acts as the conjugate acid. When a small amount of acid is added to the solution, such as hydrochloric acid (HCl), the NH3 reacts with the H+ ions in the acid to form NH4+, which neutralizes the added acid and maintains the pH of the solution.
Basic buffers are important in many biological and chemical processes, as they help to maintain a stable pH within a certain range. They are used in various applications, including in the production of pharmaceuticals, in laboratory experiments, and in environmental monitoring.
Basic buffer has a basic pH and is prepared by mixing a weak base and its salt with strong acid. The aqueous solution of an equal concentration of ammonium hydroxide and ammonium chloride has a pH of 9.25. The pH of these solutions is above seven. They contain a weak base and a salt of the weak base..
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When an acid is added to a basic buffer, the weak base in the buffer reacts with the acid to form its conjugate acid, which neutralizes some of the added acid. This reaction prevents the pH of the solution from decreasing significantly, as the buffer system maintains the balance between the weak base and its conjugate acid.
For example, a basic buffer can be made by mixing ammonia (NH3) and ammonium chloride (NH4Cl) in water. In this solution, NH3 acts as the weak base, while NH4+ acts as the conjugate acid. When a small amount of acid is added to the solution, such as hydrochloric acid (HCl), the NH3 reacts with the H+ ions in the acid to form NH4+, which neutralizes the added acid and maintains the pH of the solution.
Basic buffers are important in many biological and chemical processes, as they help to maintain a stable pH within a certain range. They are used in various applications, including in the production of pharmaceuticals, in laboratory experiments, and in environmental monitoring.
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Answer:
Basic buffer has a basic pH and is prepared by mixing a weak base and its salt with strong acid. The aqueous solution of an equal concentration of ammonium hydroxide and ammonium chloride has a pH of 9.25. The pH of these solutions is above seven. They contain a weak base and a salt of the weak base..
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