OC(Cn1c2ccccc2c2ccccc21)C[n+]1ccccc1.[O-][Cl+3]([O-])([O-])[O-]
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?