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] >>