what are buffer solutions? Give an example for acidic buffer
Answers
Answer:
The buffer solution is defined as: A solution which resists the change in hydrogen ion concentration on addition of a small amount of acid or a base in to it. Buffer action: It is the ability to resist the change in pH on addition of acid or base.
Buffer solutions resist a change in pH when small amounts of a strong acid or a strong base are added . A solution of acetic acid and sodium acetate (CH3COOH + CH3COONa) is an example of a buffer that consists of a weak acid and its salt.
Explanation:
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. Alkaline buffers, on the other hand, have a pH above 7 and contain a weak base and one of its salts.