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Definition And Types

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Buffer Solutions: Definition, Types, Preparation, Examples, and Videos

Buffers are the solutions that maintain a relatively constant pH when a base or an acid is added. Therefore, they protect other molecules in solution from the effects of the added acid or base. Buffer solutions contain either a weak base (B) and its conjugate acid (BH+), or weak acid (HA) and its conjugate base (A−) or and they are critical for the proper functioning of biological systems. Every biological fluid is buffered to uphold its physiological pH.

Example: The pH of Blood remains between 7.4-7.6. Blood act as a buffer. As you know, even after eating so many types of food items, the pH of blood remains the same.

The buffer solution is defined as a solution that resists the change in hydrogen ion concentration on the addition of a small amount of acid or a base into it.

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