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Free‐energy relationship for OH− generation by the buffering action. For the OH− generation reactions (A−+H2O→HA+OH−), the forward rate constants k OH− are plotted as a function of pK a. Black‐filled and grey‐open symbols denote data of inorganic and organic buffering species, respectively, adopted from ref. [73] (all values are listed in Table S1). The orange open symbols are calculated with the results obtained for the linear free‐energy relationship shown here.
