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29 July, 16:34

The concentration of an acid or base is defined as the ratio of the amount of

O A. solvent to the amount of solute in a solution

O B. conjugate acid to conjugate base

O C. conjugate base to conjugate acid

OD. solute to the amount of solvent in a solution

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  1. 29 July, 20:08
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    Option C

    Explanation:

    A buffer aqueous solution consists of

    a) either a weak acid along with its conjugate base

    b) or a weak base along with its conjugate acid.

    This is used to prevent change in the pH of a solution whenever an acid or a base is added. The pH of a buffer depends upon the ratio of base to acid and this ratio is determined by the Ka value and Henderson-Hasselbalch equation. An ideal buffer has equal amounts of acid and conjugate base

    Hence, option C is correct
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