Question

classification of buffer solution with example​

Answer 1

Explanation:

Buffers are broadly divided into two types – acidic and alkaline buffer solutions. Acidic buffers are solutions that have a pH below 7 and contain a weak acid and one of its salts. For example, a mixture of acetic acid and sodium acetate acts as a buffer solution with a pH of about 4.75.

Answer 2

Answer:

Acidic Buffers

• As the name suggests, these solutions are used to maintain acidic environments. Acid buffer has acidic pH and is prepared by mixing a weak acid and its salt with a strong base. An aqueous solution of an equal concentration of acetic acid and sodium acetate has a pH of 4.74.

• pH of these solutions is below seven
• These solutions consist of a weak acid and a salt of a weak acid.
• An example of an acidic buffer solution is a mixture of sodium acetate and acetic acid (pH = 4.75).
• Alkaline Buffers
• These buffer solutions are used to maintain basic conditions. 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.
• An example of an alkaline buffer solution is a mixture of ammonium hydroxide and ammonium chloride (pH = 9.25).