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pKa and pH

Posted: Thu Jan 24, 2019 11:02 pm
by abbydouglas1K
Are pKa and the pH the same thing ?

Re: pKa and pH

Posted: Thu Jan 24, 2019 11:09 pm
by Mya Majewski 1L
No, pka=-log Ka and pH=-log(H30+)
so the equations both involve a negative log (the "p" signals a negative log)
Basically they are related but the pH tells you the amount of H atoms in a solution and the pka is more specific in letting us know how acidic something is (the lower the pka the stronger the acid and the higher the Ka the stronger the acid)

Re: pKa and pH

Posted: Fri Jan 25, 2019 12:01 am
by Andre_Galenchik_2L
pH can be used to find the amount of hydronium ions in a certain reaction. pKa allows you to solve for reaction quantities by giving you the equilibrium constant of the reaction.