Where is pH equal to pKa?
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One oft-cited solution to this equation is obtained by arbitrarily setting pH = pKa. In this case, log([A-] / [HA]) = 0, and [A-] / [HA] = 1. In words, this means that when the pH is equal to the pKa of the acid, there are equal amounts of protonated and deprotonated acid molecules.
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Answer:
One oft-cited solution to this equation is obtained by arbitrarily setting pH = pka. In this case, log([A-] / [HA]) = 0, and [A-] / [HA] = 1. In words, this means that when the pH is equal to the pka of the acid, there are equal amounts of protonated and deprotonated acid molecules.
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