摘要
本文介绍了电导率法测定草酸银溶液溶度积这一物理化学实验。实验内容丰富,理论知识学习和实验技能锻炼较多。比如:固体的称量、溶解、加热,难溶物质的制备、过滤、洗涤,以及饱和溶液的制备和电导率的测定。涉及电子天平、加热板、恒温槽、电导率仪等仪器的使用。在数据处理中,运用了电导、电导率、摩尔电导率、溶解度和溶度积等物理化学中的电化学理论知识。综上所述,学生通过这一物理化学实验训练,将巩固物理化学相关理论知识,并可提高其分析和解决问题的综合能力,同时,其动手能力也将得到较好的训练,培养了学生对化学学科的兴趣和创新能力。
The physical and chemical experiment of determining solubility product of silver oxalate solution by conductivity method is introduced.The experiment content is rich,theoretical knowledge learning and experimental skills training more.For example:solid weighing,dissolving,heating,insoluble material preparation,filtration,washing,and saturated solution preparation and conductivity measurement.It involves the use of electronic balance,heating plate,constant temperature tank,conductivity meter and other instruments.In data processing,the theoretical knowledge of conductivity,molar conductivity,solubility product and so on are used.To sum up,through this experimental training,students will improve their comprehensive ability to analyze and solve problems,and their hands-on ability will also get better training,which cultivates students'interest in chemistry.
作者
张小平
丁益民
饶薇薇
洪玲
Zhang Xiaoping;Ding Yimin;Rao Weiwei;Hong Ling(Chemical Experiment Teaching Center,Department of Chemistry,School of Science,Shanghai University,Shanghai 200444,China)
出处
《广东化工》
CAS
2023年第9期230-232,共3页
Guangdong Chemical Industry
关键词
电导率法
草酸银
溶解度
溶度积
物理化学实验
相对误差
conductivity method
oxalic acid silver
solubility
solubility product
physical chemistry experiment
relative error
