What is Buffer?? According to chemistry i want to know the answer with proper details ....plzz tell..
Answers
Explanation:
A buffer solution is an aqueous solution consisting of mixture of a weask acid its conjugate base ,or vice versa .Its pH changes very little when a small amount of strong acid or base is added to it . Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications .In nature, there are many systems that use buffering for pH regulation . For example, the bicarbonate buffering system is used to regulate the pH of blood.
Answer:
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Explanation:
Buffers are solutions that resist change in pH on dilution or on the addition of small amounts of acids or alkali.
A lot of biological and chemical reactions need a constant pH for the reaction to proceed. Buffers are extremely useful in these systems to maintain the pH at a constant value. This does not mean that the pH of buffers does not change. It only means that the change in pH is not as much as it would be with a solution that is not a buffer.
Learn more about pH Scale here in more detail.
Types of Buffer Solutions
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.
Alkaline buffers, on the other hand, have a pH above 7 and contain a weak base and one of its salts. For example, a mixture of ammonium chloride and ammonium hydroxide acts as a buffer solution with a pH of about 9.25. Buffer solutions help maintain the pH of many different things as shown in the image below.

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