2.活度积和溶度积 ∵K →K 0 K MA(水) →活度积K=aa 注:T定,K为常数 K M]·y·[A] A →溶度积Ksp=-8=[M][A2. 活度积和溶度积 + − + − + −  =  =   =  = S P M A M A MA M A K K S a a S a a a a a K 0 0 0 （水）   = +  − SP M A K a a 活度积 0 注：T一定，KSP 0 为常数 = +  − =  +   − + − SP M A M A K a a [M ]  [A ]  0  [ ] [ ] 0 + − =    = + − M A K K M A S P S P   溶度积