CCOc1cc(/C=C2\C(=O)N(c3cccc(C(=O)O)c3)N=C2C(F)(F)F)ccc1OCC(=O)Nc1ccccc1OC
The negative base-10 logarithmic of dissociation constant (pka) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the pka value of this molecule?