Question

Class 11 chemistry chapter buffers titrations and solubility equilibria

Answer 1

A buffer solution is a solution whose pH does not change significantly upon the addition of a small amount of a strong acid or strong base. Buffer solutions contain a substantial amount of a weak acid and a weak base, usually a weak acid-weak base conjugate pair. Buffer solutions are important for systems where a particular value for pH is required, such as in biological systems. Examples:CH 3 COOH + CH 3 COO - acetate buffer H 2 CO 3 + HCO 3 - carbonate buffer NH 3 + NH 4 + ammonia buffer

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