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Appendix I Ionization Constants of Weak Bases

Appendix I Ionization Constants of Weak Bases

Ionization Constants of Weak Bases
Base Lewis Structure Kb at 25 °C
ammonia The Lewis structure of an ammonia molecule (NH3), showing a central nitrogen atom bonded to three hydrogen atoms and a lone pair of electrons on the nitrogen. 1.8 ×× 10−5
dimethylamine The structural formula of dimethylamine, (CH3)2NH, a secondary amine. It features a central nitrogen atom bonded to two methyl groups and one hydrogen, along with a lone pair. 5.9 ×× 10−4
methylamine A Lewis structure diagram of methylamine, showing a carbon atom bonded to three hydrogen atoms and a nitrogen atom. The nitrogen atom is bonded to two hydrogen atoms and has one lone pair of electrons. 4.4 ×× 10−4
phenylamine (aniline) The molecular structure of aniline (C6H5NH2), an aromatic organic compound featuring a benzene ring with an amino (-NH2) group attached. 4.3 ×× 10−10
trimethylamine The chemical structure of trimethylamine, featuring a central nitrogen atom bonded to three methyl groups and a lone pair of electrons. 6.3 ×× 10−5
Table I1