If the instantaneous Buffer Capacity () of a simple acidic buffer () is plotted on the y-axis against the ratio of on the x-axis, what is the visual shape of the resulting graph, and where is its maxi

Question

If the instantaneous Buffer Capacity ($\beta$) of a simple acidic buffer ($HA/A^-$) is plotted on the y-axis against the ratio of $[Salt]/[Acid]$ on the x-axis, what is the visual shape of the resulting graph, and where is its maximum?

Prashant Kotian · Accepted Answer

Correct answer: C. Buffer capacity () achieves its absolute maximum when the concentration of the weak acid exactly equals the concentration of its conjugate base salt (, or ). If plotted, the visual representation is a symmetrical bell-shaped curve that peaks precisely where the ratio is 1 (which corresponds to ).

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