If the instantaneous Buffer Capacity () of a simple acidic buffer () is plotted on the y-axis agains — Ionic Equilibrium Chemistry Question

💡 Solution & Explanation

Buffer capacity ($\beta = 2.303 \frac{ab}{a+b}$) achieves its absolute maximum when the concentration of the weak acid exactly equals the concentration of its conjugate base salt ($[Salt] = [Acid]$, or $a=b$). If plotted, the visual representation is a symmetrical bell-shaped curve that peaks precisely where the ratio is 1 (which corresponds to $pH = pK_a$).