电导率和摩尔电导率与浓度关系的教学讨论  

Relationship Between Electrolytic Conductivity and Molar Conductivity to Electrolytic Concentration

作　　者：何强 苏梦瑶 孙彦璞[1] HE Qiang;SU Meng-Yao;SUN Yan-Pu(School of Chemistry and Chemical Engineering,Ningxia University,National Demonstration Center for Experimantal Chemistry Education（Ningxia University）,Yinchuan 750021,China)

机构地区：[1]宁夏大学化学化工学院化学国家级实验教学示范中心(宁夏大学),宁夏银川750021

出　　处：《化学教育（中英文）》2018年第18期69-71,共3页Chinese Journal of Chemical Education

基　　金：宁夏高等学校一流学科建设(化学工程与技术学科)资助项目(NXYLXK2017A04)

摘　　要：根据电导率和摩尔电导率的物理意义,通过简单计算,确定了参与导电的离子数目与电解质溶液浓度或电离度之间的关系,由此分析说明了电导率和摩尔电导率与电解质浓度的关系。方法简单清晰,便于学生领会理解。Depending on the physical meaning of electrolytic conductivity and molar conduc- tivity, the relationship between electrolytic conductivity and molar conductivity to the electrolyte concentration was analyzed by simple calculation. The relationship between the number of con- ductive ions and electrolytic solution concentration or ionization degree was determined. The method is simple and clear, so that the students can understand easily and meet the teaching re- quirements.

关 键 词：电导率 摩尔电导率 电解质浓度 参与导电离子数目 离子间相互作用 

分 类 号：O64-4[理学—物理化学] G642[理学—化学]