作者ru18284 (浪子回头)
看板Chemistry
标题[高中] 一题化学
时间Sun May 29 11:53:20 2011
The Ksp for PbF2 is 4.0* 10^-8. If a 0.043 M NaF solution is saturated
with PbF2, what is the [Pb2+] in solution?
这应该是利用共同离子效应没错吧...
(0.043+s)(s)=KSP ??
然後前者s太小可省略...
这样算哪里错了???!
算出来答案是错的...
谢谢罗!!!
感恩~~~~~~
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1F:推 yclin:(s)(0.043+2s)^2=Ksp 05/29 12:01
2F:推 whalelover:次方不见了 05/29 12:07
3F:→ ru18284:对齁 哈 谢谢罗~!!! 05/29 13:30