A buffer solution can be prepared by mixing equal volumes of

Question

A buffer solution can be prepared by mixing equal volumes of, 0 . 2 M NH 4 OH and 0 . 1 M HCl, 0 . 2 M NH 4 OH and 0 . 2 M HCl, 0 . 2 M NaOH and 0 . 1 M CH 3 COOH, 0 . 1 M NH 4 OH and 0 . 2 M HCl

MARKS App · Accepted Answer

The solutions which resist change in pH on dilution or with the addition of small amounts of acid or alkali are called buffer solution. It is a mixture of weak base with its salt or weak acid with its salt. Thus, buffer solution can be prepared by mixing equal volumes of 0 . 2 M NH 4 OH (weak base) and 0 . 1 M HCl (strong acid). It results in the formation of NH 4 OH (weak base) + NH 4 Cl (salt of weak base NH 4 OH ), which is a basic buffer mixture.

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