how to find pkb

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Ian Morris 3C
Posts: 101
Joined: Wed Sep 18, 2019 12:18 am

how to find pkb

Postby Ian Morris 3C » Thu Mar 12, 2020 11:32 pm

how do we find pkb from poh.

Ruby Tang 2J
Posts: 102
Joined: Fri Aug 30, 2019 12:15 am

Re: how to find pkb

Postby Ruby Tang 2J » Fri Mar 13, 2020 7:57 am

pKb is a measure of the strength of a base, while pOH is a direct measure of the hydroxide ion concentration of a substance. While they're related, you generally wouldn't be asked to calculate pKb from pOH. In the case of a basic buffer (ie a weak base and its salt), you could relate the two via the Henderson-Hasselbalch equation: pOH = pKb + log([salt]/[base]); however, I don't think we need to know that for this class.

Cooper Baddley 1F
Posts: 100
Joined: Wed Sep 18, 2019 12:19 am

Re: how to find pkb

Postby Cooper Baddley 1F » Fri Mar 13, 2020 9:11 am

In the scope of this class, you should not need to know to find pKb for pOH


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