二溶度积与条件溶度积MA=M+A M A K=MA= Q(M).a(A) sp y(M)·y(A)y(M)·y(A) 溶度积常数,与t、有关 K s=[M IA]=[M]aM[A]aa"Ksp aMaA 条件溶度积常数,与条件有关 K'2K28 MA: S=K sp sp sp MA2: K SD=[M IA ]2=KsD aM aa2 MA,:S=3/K′/4 2 MmAn?练习! sp5 二 溶度积与条件溶度积 sp sp (M) (A) [M][A] (M) (A) (M) (A) a a K K       = = =   M´ A´ MA=M … ＋A … K´ sp ＝[M´ ][A´ ]＝[M]M[A] A=Ksp  M  A 条件溶度积常数, 与条件有关 MmAn？练习！ K´ sp≥ Ksp ≥ Kθ sp 溶度积常数，与t、I有关 S K sp MA : = MA2 : K´ sp ＝[M´ ][A´ ] 2 =Ksp M A 2 S K3  / 4 M 2 sp A : =