再论物质酸性强弱的比较——乙酸和碳酸  

Discussion on Comparison of the Acidity of Substances: Acetic Acid and Carbonic Acid

作　　者：魏思宇 彭兰花 汪秋英[1] 张小亮[1] WEI Si-Yu;PENG Lan-Hua;WANG Qiu-Ying;ZHANG Xiao-Liang(College of Chemistry and Chemical Engineering,Jiangxi Normal University,Nanchang 330022,China;Nanchang No.2 Middle School,Nanchang 330038,China)

机构地区：[1]江西师范大学化学化工学院,江西南昌330022 [2]江西省南昌市第二中学,江西南昌330038

出　　处：《化学教育（中英文）》2024年第17期111-113,共3页Chinese Journal of Chemical Education

基　　金：江西省高校教学改革研究课题“师范类专业认证视域下课程目标达成度评价平台的设计开发与实践研究”(No.JXJG-22-2-9);江西省基础教育研究课题“化学史与中学课堂教学深度融合的案例设计与实践研究”(SZUSDHX2023-1015);江西省2023年度研究生创新基金资助项目“基于SOLO分类理论的高中化学‘教、学、评’一体化设计与实践研究”(YC2023-S294)。

摘　　要：针对高中阶段常见物质酸性强弱的比较问题,以乙酸和碳酸为研究对象,以电子效应和电离常数为切入点对此二酸的酸性强弱进行定性和定量的分析比较。对乙酸能和碳酸盐反应生成CO_(2)的机理进行分析说明,最后总结比较中学阶段常见物质酸性强弱的一般方法和规律。In view of the issues of comparing the acidity of common substances in senior high school,the acidity of acetic acid and carbonic acid were discussed qualitatively and quantitatively with the electron effect and ionisation constants as the entry point.The reaction mechanism of acetic acid and carbonate to produce CO_(2) was analyzed and explained.Finally,the general method of comparing the acidity of common substances in high school were summarized.

关 键 词：酸性 乙酸 碳酸 电子效应 电离常数 反极化作用 

分 类 号：G633.8[文化科学—教育学]