摘要
剖析难溶电解质教学的3个误区并提出建议,这3个误区是:(1)难溶电解质的Ksp越大,其溶解度越大;(2)溶解度大的沉淀能转化为溶解度小的沉淀,溶解度小的沉淀不能转化为溶解度大的沉淀;(3)Ksp大的沉淀能转化为Ksp小的沉淀,Ksp小的沉淀不能转化为Ksp大的沉淀.
This paper analyzed three misunderstandings in teaching of insoluble electrolyte and put forward some suggestions. The three misunderstandings were:（1） the greater Ksp of the insoluble electrolyte, the greater solubility of it;（2） precipitation with high solubility could transform to precipitation with low solubility, but not vice versa;（3） precipitation with large Kspcould transform to precipitation with small Ksp, but not vice versa.
出处
《化学教育》
北大核心
2017年第19期68-72,共5页
Chinese Journal of Chemical Education
关键词
难溶电解质
溶度积
溶解度
沉淀转化
有效教学
insoluble electrolyte
solubility product
solubility
precipitation transformation
effective teaching
