DUPLICATE. The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to

Question

3 years ago

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DUPLICATE. The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to

form its conjugate, and the other half still remains unreacted. If 0.580 moles of a monoprotic weak acid (Ka = 4.5 _ 10-5) is titrated with NaOH, what is the pH of the solution at the half-equivalence point?

Chemistry

1 answer:

Law Incorporation [45] · Answer 1 · 2022-05-07T14:41:07+03:00

Law Incorporation [45]3 years ago

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At the half equivalence point [HA] = [A-] and pH = pKa

<span>if Ka is 5.2e-5 then pKa = pH = 4.28</span>