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Potential of mean force (PMF) for titrating the model compound and co-ion in explicit solvent. Solid curves are the PMFs for the deprotonation reaction of the model azelaic acid (blue), neutralization reaction of the chloride co-ion (red), and the sum of the two (black). The average force at each θ value is shown as circle and the fitting function is shown as dashed curve. Integration of the fitting function gives the PMF.
