Using the calculated adsorption free energies under both continuum and the earlier "benchmark" atomistic (QM/MM) levels for the collection of small organic molecules in differing conformations on various metals, we fit the two remaining empirical constants, finding 𝛼 = 0.73 and 𝛽 = 0.17. Note that while 𝛼 is of order 1, as might be expected on physical grounds, here 𝛽 is quite small and positive, in contrast to what might be expected based on the arguments outlined above. We attribute this observation to two principal effects. First, Eq. 2 utilizes the adsorption energies calculated at the continuum solvation vs. gas-phase (no continuum solvation) level, thus already partially accounting for the re-solvation of the liberated surface water and thus influencing the interpretation of 𝛽. In fact, when re-fitting the data using gas-phase vs. continuum solvation binding energies, we find 𝛽 < 0, as expected (see Supporting Information). Although both approaches are accurate, using the latter allows the model to be naturally extended to arbitrary applied electrode potentials (vide infra). In addition, we also find that the precise value of the constants are in practice quite correlated during the fitting process, which means that their precise individual values should be taken with some caution.