------------------- AgCl(s)= Ag+ (aq) + Cl - (aq)
初始(mol/L):0.2 0
平衡(mol/L):0.2+x ≈0.2 x
[Ag+] [Cl-] = Ksp
[Cl-] = Ksp / [Ag+]
x = [Cl-] = 1.8x10^-10/ 0.2 = 9*x10^-10 (mol/L)
------------------- AgCl(s)= Ag+ (aq) + Cl - (aq)
初始(mol/L):0.2 0
平衡(mol/L):0.2+x ≈0.2 x
[Ag+] [Cl-] = Ksp
[Cl-] = Ksp / [Ag+]
x = [Cl-] = 1.8x10^-10/ 0.2 = 9*x10^-10 (mol/L)