由溶度积算出的溶解度是用物质的量浓度表示:
查得:Ksp[Mg(OH)2] = 5.61*10^-12
Mg(OH)2 = Mg2+ + 2OH-
s 2s
[Mg2+][OH-]^2 = Ksp
4s^3 = Ksp
s = (Ksp/4)^1/3
= (5.61*10^-12 / 4 )^1/3
= 1.12*10^-4 (mol/L)
由溶度积算出的溶解度是用物质的量浓度表示:
查得:Ksp[Mg(OH)2] = 5.61*10^-12
Mg(OH)2 = Mg2+ + 2OH-
s 2s
[Mg2+][OH-]^2 = Ksp
4s^3 = Ksp
s = (Ksp/4)^1/3
= (5.61*10^-12 / 4 )^1/3
= 1.12*10^-4 (mol/L)