New Strategy for Calculating Ion Transference Number by Hittorf Method in Physical Chemistry Teaching
CHEN Yu1**, ZHAO Di1, ZHU Mei-Jing1, QIAO Ke-Pan1, MU Tian-Cheng2**
1. Department of Chemistry and Material Science, Langfang Normal University, Langfang 065000, China;
2. Department of Chemistry, Renmin University of China, Beijing 100872, China
Abstract Calculation of ion transference number by Hittorf method is important and difficult in physical chemistry teaching. It is also one of the most frequently-asked questions by students in the practical teaching process of physical chemistry. Classic physical chemistry textbooks only provide one or two related examples without detailed steps on the calculation process by Hittorf method; therefore, students cannot really understand the essence of the concept and related calculation method. Here, we propose a new strategy for the calculation of ion transference number by Hittorf method. Finally, several examples are given for the demonstration of this new strategy. Through this new strategy, the calculation of ion transference number will be more convenient, faster and less error-prone, which could also help students understand the concept of ion transference number and increase their interests in learning physical chemistry.
CHEN Yu**,ZHAO Di,ZHU Mei-Jing,QIAO Ke-Pan,MU Tian-Cheng**. New Strategy for Calculating Ion Transference Number by Hittorf Method in Physical Chemistry Teaching[J]. Chinese Journal of Chemical Education, 2021, 42(8): 39-42.
