pKa vs Ka

Acidity
Basicity
The Conjugate Seesaw

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Jennifer1E
Posts: 25
Joined: Fri Jun 23, 2017 11:39 am

pKa vs Ka

Postby Jennifer1E » Sun Jul 30, 2017 2:28 pm

What is the difference between pKa and Ka?

Chem_Mod
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Re: pKa vs Ka

Postby Chem_Mod » Sun Jul 30, 2017 5:17 pm

pKa is the negative log of Ka - analagous to pH being the negative log of [H+]

404768057
Posts: 20
Joined: Fri Jul 22, 2016 3:00 am

Re: pKa vs Ka

Postby 404768057 » Sun Jul 30, 2017 5:17 pm

Why do we use pKa instead of Ka?

JD Malana
Posts: 21
Joined: Wed Nov 16, 2016 3:02 am

Re: pKa vs Ka

Postby JD Malana » Sun Jul 30, 2017 5:28 pm

Just as pH is a simpler way of understanding the concentration of hydronium ions, pK's are simpler way of understanding the equilibrium constants of weak acids or bases.


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