已知Ag(NH3)2+(aq)===Ag+(aq)+2NH3(aq)电力平衡常数Kd=8.0*10^-8且AgCl的Ksp=2.0*10^-10 求氯化银溶于氨水反应平衡常数完全溶解0.020mol氯化银至少需6.0MOL/L浓氨水多少L?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 06:58:48
![已知Ag(NH3)2+(aq)===Ag+(aq)+2NH3(aq)电力平衡常数Kd=8.0*10^-8且AgCl的Ksp=2.0*10^-10 求氯化银溶于氨水反应平衡常数完全溶解0.020mol氯化银至少需6.0MOL/L浓氨水多少L?](/uploads/image/z/6862735-55-5.jpg?t=%E5%B7%B2%E7%9F%A5Ag%28NH3%292%2B%28aq%29%3D%3D%3DAg%2B%28aq%29%2B2NH3%28aq%29%E7%94%B5%E5%8A%9B%E5%B9%B3%E8%A1%A1%E5%B8%B8%E6%95%B0Kd%3D8.0%2A10%5E-8%E4%B8%94AgCl%E7%9A%84Ksp%3D2.0%2A10%5E-10+%E6%B1%82%E6%B0%AF%E5%8C%96%E9%93%B6%E6%BA%B6%E4%BA%8E%E6%B0%A8%E6%B0%B4%E5%8F%8D%E5%BA%94%E5%B9%B3%E8%A1%A1%E5%B8%B8%E6%95%B0%E5%AE%8C%E5%85%A8%E6%BA%B6%E8%A7%A30.020mol%E6%B0%AF%E5%8C%96%E9%93%B6%E8%87%B3%E5%B0%91%E9%9C%806.0MOL%2FL%E6%B5%93%E6%B0%A8%E6%B0%B4%E5%A4%9A%E5%B0%91L%3F)
已知Ag(NH3)2+(aq)===Ag+(aq)+2NH3(aq)电力平衡常数Kd=8.0*10^-8且AgCl的Ksp=2.0*10^-10 求氯化银溶于氨水反应平衡常数完全溶解0.020mol氯化银至少需6.0MOL/L浓氨水多少L?
已知Ag(NH3)2+(aq)===Ag+(aq)+2NH3(aq)电力平衡常数Kd=8.0*10^-8且AgCl的Ksp=2.0*10^-10
求氯化银溶于氨水反应平衡常数
完全溶解0.020mol氯化银至少需6.0MOL/L浓氨水多少L?
已知Ag(NH3)2+(aq)===Ag+(aq)+2NH3(aq)电力平衡常数Kd=8.0*10^-8且AgCl的Ksp=2.0*10^-10 求氯化银溶于氨水反应平衡常数完全溶解0.020mol氯化银至少需6.0MOL/L浓氨水多少L?
AgCl(s) = Ag+(aq) + Cl-(aq) Ksp = 2.0×10^(-10)
Ag+(aq) + 2NH3(aq) = [Ag(NH3)2]+(aq) K = 1/Kd = 1.25×10^7
AgCl(s) + 2NH3(aq) = [Ag(NH3)2]+(aq) + Cl-(aq) K‘ = Ksp·K = 2.5×10^(-3)
设需要6mol/L氨水xL
AgCl(s) + 2NH3(aq) = [Ag(NH3)2]+(aq) + Cl-(aq)
6x 0 0
6x-0.04 0.02 0.02
K' = c{[Ag(NH3)2]+}×c(Cl-)÷c(NH3)^2 = (0.02/x)^2 ÷ [(6x-0.04)/x]^2 = 2.5×10^(-3)
解得:x = 0.073