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pKa vs Ka

Posted: Sun Jul 30, 2017 2:28 pm
by Jennifer1E
What is the difference between pKa and Ka?

Re: pKa vs Ka

Posted: Sun Jul 30, 2017 5:17 pm
by Chem_Mod
pKa is the negative log of Ka - analagous to pH being the negative log of [H+]

Re: pKa vs Ka

Posted: Sun Jul 30, 2017 5:17 pm
by 404768057
Why do we use pKa instead of Ka?

Re: pKa vs Ka

Posted: Sun Jul 30, 2017 5:28 pm
by JD Malana
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.