A term for a conjugate base. In the Bronsted acid-base theory, a Bronsted base with a proton H + attached is the conjugate acid for that base. For example, ammonia NH3 is NH3 +H + → NH4 + In the reaction above, H + is received and NH4 + is formed, so NH4 + is the conjugate acid for NH3 . H2O → H + + OH- In the reaction above, if H 2 O is considered as an acid, OH- is the conjugate base (the acid with H + removed), but H2O + H + → H3O + In the reaction above, H 3 O + is the conjugate acid to H 2 O. Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition |
共役塩基に対する用語.ブレンステッドの酸塩基の理論において,ブレンステッド塩基にプロトン H+ が結合したものが,その塩基に対する共役酸である.たとえば,アンモニアNH3は, NH3 + H+ → NH4+ の反応で H+ を受けとってNH4+になるから,NH4+はNH3に対する共役酸である.また, H2O → H+ + OH- の反応で,H2Oを酸と考えれば,OH-は共役塩基(酸から H+ を除いたもの)であるが, H2O + H+ → H3O+ の反応では,H3O+はH2Oに対する共役酸である. 出典 森北出版「化学辞典(第2版)」化学辞典 第2版について 情報 |
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