分析化学有效数字教学中常见问题及分析  

Frequently Encountered Problems and Analysis of Significant Figures Teaching in Analytical Chemistry

作　　者：刘海燕[1] 赵怡 胡坪[1] 钱俊红[1] 张文清[1] LIU Haiyan;ZHAO Yi;HU Ping;QIAN Junhong;ZHANG Wenqing(School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,P.R.China)

机构地区：[1]华东理工大学化学与分子工程学院,上海200237

出　　处：《大学化学》2018年第10期105-109,共5页University Chemistry

基　　金：华东理工大学基础课程教学团队建设项目(YJ0126123);华东理工大学专业核心课程项目;谱学导论上海市重点课程

摘　　要：分析化学往往会涉及大量的实验数据,能否对这些原始数据进行正确的记录及运算,关系到实验结果的可靠性及准确度。本文从有效数字的重要性出发,针对教学过程中发现的与有效数字有关的常见问题,进行了深入分析,指出了解决方法,力图帮助学生学习和掌握有效数字的概念、数值修约、运算规则和数据处理能力。Analytical chemistry often involves a large amount of experimental data, and the reliability and accuracy of the experimental results are related to whether the original data can be properly recorded and calculated. In this paper, starting from the importance of significant figures, analyzing the frequently encountered problems related to the significant figures in teaching process, and giving some solutions, we try to help students to learn and master the concept of significant figures, rounding off numerical values, rule of operation and data processing.

关 键 词：有效数字 数据记录 数值修约 数据处理 

分 类 号：G64[文化科学—高等教育学] G420[文化科学—教育学]