Figure shows the distribution of ∆G * solv (AH) for different solvents. The number of ∆G * solv (AH) data is just two less than that of ∆G * solv (A -) (lower because some acids can lose a proton at different locations). The ∆G * solv (AH) values range from -36 to 0 kcal mol -1 , and are mostly concentrated between -20 to -5 kcal mol -1 . The solvation energy distributions are mostly unimodal, and water is the most widely-represented solvent.