9. The problem of microscopic ionization constants
The problem of determining acidity microconstants arises systematically when studying the ionization of a polyacid (or polybase).
9.1 Macroscopic and microscopic constants
We only pose the problem in the case of the diacid H—A—H. The diacid can be ionized to give the corresponding monoacid by either route 1 or route 2. In route 1, the monoacid HA– is formed. Let k11 be the corresponding acidity constant. Following pathway 2, the monobasic acid –AH is formed (figure 10). The acidity constant is k12 . In turn, the monoacids HA– and –AH ionize to give the same species, dibase A2–. The ionization constants are k21...
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The problem of microscopic ionization constants
Prediction of pKa values
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