Which concentration of a weak acid (HA) and its conjugate base (A-) will make a buffer...

Question

Question

Which concentration of a weak acid (HA) and its conjugate base (A-) will make a buffer solution whose pH value is equal to its pKa?

(HA) = 0.05 M, (A-) = 0.07 M

HA = 0.05 M, (A-) = 0.05 M

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