Ka and Kb Values

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JafarriNocentelli 1G
Posts: 129
Joined: Fri Sep 24, 2021 7:26 am

Ka and Kb Values

Postby JafarriNocentelli 1G » Sun Dec 05, 2021 4:24 pm

How exactly are Ka, Kb, and pKa values determined?
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jackie-3L
Posts: 100
Joined: Fri Sep 24, 2021 5:13 am

Re: Ka and Kb Values

Postby jackie-3L » Sun Dec 05, 2021 4:47 pm

Ka and Kb values are the dissociation constants for either a weak acid or a weak base. These values will usually be provided, you don't have to calculate them in 14A (unless you are calculating it from the pKa or pKb). pKa is just -log(Ka) and similarly, pKb is -log(Kb).
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