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Chemistry
Buffer capacity of a buffer will be maximum when
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Q. Buffer capacity of a buffer will be maximum when
COMEDK
COMEDK 2008
Equilibrium
A
$pH = pK_a - 1$
4%
B
$pH = pK_a + 1$
36%
C
$pH = pK_a $
50%
D
pH= zero
10%
Solution:
Buffer capacity of a buffer is maximum when the concentration of the weak acid and its salt or weak base and its salt are equal i.e., when $pH = pK_{a}$ or $pOH = pK_{b}$.