N=C(NC(=O)c1cccc(C(F)(F)F)c1)c1ccc(C(F)(F)F)cn1
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?