§1-3水溶液中的解离平衡
16 §1-3 水溶液中的解离平衡
3-1—元酸,弱的解喜平衡 1解离常数 HAC+H2o=H3o+ Ac HAC=H+Ac ke0 Ionization) (C(H)/C)C(AC )/c) C(H).C(Ac (acidity) (C(HAc)/c HAc NHa +HO=NH++oh O C(NHA).C(OH (basicity C(NH3)
17 3-1 一元弱酸、弱碱的解离平衡 1.解离常数 HAc＋H2O＝H3O+＋Ac－ HAc＝H+＋Ac－ Ki (ionization) (HAc) (H ) (Ac ) ( (HAc)/ ) ( (H )/ )( (Ac )/ ) c c c c c c c c c Ka + − + − = = (acidity) NH3＋H2O＝NH4 +＋OH－ (NH ) (NH ) (OH ) 3 4 c c c Kb + − = (basicity)