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Chemistry 15 Online
OpenStudy (anonymous):

If the pH at the half equivalence point for a titration of a weak acid with a strong base is 4.6, what is the value of Ka for the weak acid. In previous question it asked to calculate the pH of a hydronium ion at .0002. I got 3.7.

OpenStudy (aaronq):

at the half-equivalence point: pH=pKa

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