acidic hydrogen
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        A hydrogen atom in amolecule that enters into a dissociation e-quilibrium when the molecule is dissolvedin a solvent. For example,in ethanoic acid(CH3COOH)the acidic hydrogen is the oneon the carboxyl group,-COOH:CH3COOH+H2O⇌ CH3COO+H3O+.當分子溶解于溶劑中時,......（本文共 303 字）     [閱讀本文] >>