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Does anyone know of any online free or cheap software that can roughly calculate the PKA of an organic compound? I'm working with a lot of synthetic cannabinoids that have a protonatable nitrogen and need roughly their PKA values.
Ka = ( [H+] [A-])/ [HA]. Now take the log on both sides and divide the whole equation with -1. Then you get -log (Ka) = -log [H+] -log ( [A-]/ [HA]). This then further translates to the following equation; pH = pKa + log ( [A-]/ [HA]).
To convert the Ka value of 7.1 * 10^-7 to the pKa value with no calculator, do we just assume that the power is approximately equivalent to the pKa? So for this example we would approximate the pKa to be about 7?
7 Ιουλ 2024 · This pKa calculator helps you find the pKa from pH with the Henderson-Hasselbalch equation or with acid dissociation constant (Ka) values.
22 Νοε 2024 · Use the pKa Calculator to find the acid dissociation constant (pKa) of a substance based on its pH and concentration. Ideal for chemistry studies and acid-base equilibrium analysis.
pKa - The pKa value is the negative base -10 logarithm of the acid dissociation constant (Ka) of a solution. The quantitative behavior of acids and bases in solution can be understood only if their pKa values are known.
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