溶液法测定偶极矩要在定温下对不同浓度的溶液的折射率、比重和电容等三类近百个数值进行测定,因而造成误差的机会很多,我们按照复旦大学等校编的《物理化学实验》一书中介绍的方法对三氯甲烷的偶极矩反复进行测定,初步探索做好这一实验所应注意的问题。一、试剂的干燥实验所用试剂苯和三氯甲烷中常含微量 The determination of the dipole moment by the solution method requires determination of three types of nearly 100 values ​​of the refractive index, specific gravity, and capacitance of solutions with different concentrations at a constant temperature, thus giving rise to many opportunities for errors. We follow the “Physical Chemistry” edited by Fudan University and other schools. The method described in the book “Experiment” is used to repeatedly measure the dipole moment of chloroform and to explore the problems that should be paid attention to in this experiment. I. Reagents for drying experiments Reagents used in benzene and chloroform are often traces