将0.01mol/L的K2SO4溶液、0.02mol/L的Al2(SO4)3溶液和蒸馏水混合(液体体积可以相加)要使混合液中K+、Al3+、SO42-的浓度分别为0.01mol/L、0.01mol/L、0.02mol/L,则所取K2SO4溶液,Al2(SO4)3溶液和蒸馏水三者
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 07:50:45
![将0.01mol/L的K2SO4溶液、0.02mol/L的Al2(SO4)3溶液和蒸馏水混合(液体体积可以相加)要使混合液中K+、Al3+、SO42-的浓度分别为0.01mol/L、0.01mol/L、0.02mol/L,则所取K2SO4溶液,Al2(SO4)3溶液和蒸馏水三者](/uploads/image/z/8191096-16-6.jpg?t=%E5%B0%860.01mol%2FL%E7%9A%84K2SO4%E6%BA%B6%E6%B6%B2%E3%80%810.02mol%2FL%E7%9A%84Al2%EF%BC%88SO4%EF%BC%893%E6%BA%B6%E6%B6%B2%E5%92%8C%E8%92%B8%E9%A6%8F%E6%B0%B4%E6%B7%B7%E5%90%88%EF%BC%88%E6%B6%B2%E4%BD%93%E4%BD%93%E7%A7%AF%E5%8F%AF%E4%BB%A5%E7%9B%B8%E5%8A%A0%EF%BC%89%E8%A6%81%E4%BD%BF%E6%B7%B7%E5%90%88%E6%B6%B2%E4%B8%ADK%2B%E3%80%81Al3%2B%E3%80%81SO42-%E7%9A%84%E6%B5%93%E5%BA%A6%E5%88%86%E5%88%AB%E4%B8%BA0.01mol%2FL%E3%80%810.01mol%2FL%E3%80%810.02mol%2FL%2C%E5%88%99%E6%89%80%E5%8F%96K2SO4%E6%BA%B6%E6%B6%B2%2CAl2%28SO4%293%E6%BA%B6%E6%B6%B2%E5%92%8C%E8%92%B8%E9%A6%8F%E6%B0%B4%E4%B8%89%E8%80%85)
将0.01mol/L的K2SO4溶液、0.02mol/L的Al2(SO4)3溶液和蒸馏水混合(液体体积可以相加)要使混合液中K+、Al3+、SO42-的浓度分别为0.01mol/L、0.01mol/L、0.02mol/L,则所取K2SO4溶液,Al2(SO4)3溶液和蒸馏水三者
将0.01mol/L的K2SO4溶液、0.02mol/L的Al2(SO4)3溶液和蒸馏水混合(液体体积可以相加)
要使混合液中K+、Al3+、SO42-的浓度分别为0.01mol/L、0.01mol/L、0.02mol/L,则所取K2SO4溶液,Al2(SO4)3溶液和蒸馏水三者的体积比大约是多少?(液体体积可以相加)
1:1
我只想知道是怎么做出来的.
将0.01mol/L的K2SO4溶液、0.02mol/L的Al2(SO4)3溶液和蒸馏水混合(液体体积可以相加)要使混合液中K+、Al3+、SO42-的浓度分别为0.01mol/L、0.01mol/L、0.02mol/L,则所取K2SO4溶液,Al2(SO4)3溶液和蒸馏水三者
设所取K2SO4溶液,Al2(SO4)3溶液和蒸馏水三者的体积V1,V2,V3
n(k+)=0.02V1 (K2SO4~~~~2K+)
n(Al3+)=0.04V2 (Al2(SO4)3~~~~~2Al3+)
n(SO42-)=0.01V1+0.06V2
那么:
c(k+)=0.02V1/(V1+V2+V3)=0.01 ①
c(Al3+)=0.04V2/(V1+V2+V3)=0.01 ②
c(SO42-)=(0.01V1+0.06V2)/(V1+V2+V3)=0.02 ③
①/②得出:V1=2V2
带入③:
8V2=6V2+2V3 得到V2=V3
所以V1:V2:V3=2V2:V2:V2=2:1:1