将0.2mol/LAgNO3溶液和0.6mol/L氨水等体积混合,求溶液中Ag+的浓度.已知K稳[Ag(NH3)2]+=1.7*10^7
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![将0.2mol/LAgNO3溶液和0.6mol/L氨水等体积混合,求溶液中Ag+的浓度.已知K稳[Ag(NH3)2]+=1.7*10^7](/uploads/image/z/4905985-49-5.jpg?t=%E5%B0%860.2mol%2FLAgNO3%E6%BA%B6%E6%B6%B2%E5%92%8C0.6mol%2FL%E6%B0%A8%E6%B0%B4%E7%AD%89%E4%BD%93%E7%A7%AF%E6%B7%B7%E5%90%88%2C%E6%B1%82%E6%BA%B6%E6%B6%B2%E4%B8%ADAg%2B%E7%9A%84%E6%B5%93%E5%BA%A6.%E5%B7%B2%E7%9F%A5K%E7%A8%B3%5BAg%28NH3%EF%BC%892%5D%2B%3D1.7%2A10%5E7)
将0.2mol/LAgNO3溶液和0.6mol/L氨水等体积混合,求溶液中Ag+的浓度.已知K稳[Ag(NH3)2]+=1.7*10^7
将0.2mol/LAgNO3溶液和0.6mol/L氨水等体积混合,求溶液中Ag+的浓度.已知K稳[Ag(NH3)2]+=1.7*10^7
将0.2mol/LAgNO3溶液和0.6mol/L氨水等体积混合,求溶液中Ag+的浓度.已知K稳[Ag(NH3)2]+=1.7*10^7
c(Ag+)=0.1mol/L,c(NH3)=0.3mol/L
αAg(NH3)2=1+β1[NH3]+β2[NH3]2
[Ag+]=c(Ag+)/αAg(NH3)
1,若已知lgβ1=3.4,lgβ2=7.4
则[Ag+]=4.42e-8.
2,若知道K稳[Ag(NH3)2]+=1.7*10^7,
即β2=lgK稳[Ag(NH3)2]+=7.23而β1忽略,
则[Ag+]=6.54-8
[络]=0.1
[游氨]=0.1
[Ag+]=[络]/{K*[游氨]*[游氨]}=5.88*10^-7