| 利用离子交换树脂探究浓度对化学平衡的影响 |
| |
| 引用本文： | 赖瑶,黄萍,李悦,冉鸣.利用离子交换树脂探究浓度对化学平衡的影响[J].化学教育,2022,43(3):116-119. |
| |
| 作者姓名： | 赖瑶 黄萍 李悦 冉鸣 |
| |
| 作者单位： | 四川师范大学化学与材料科学学院 四川成都 610068 |
| |
| 摘 要： | 利用花青素以及重铬酸钾溶液的可逆反应,通过添加阳离子交换树脂,在不改变溶液中其他物质浓度的条件下,探究浓度对化学平衡的影响.实验仪器简单、试剂易得、现象明显且用时较短,能够作为课堂演示实验或学生实验,为课堂教学提供真实情镜与探究案例.
|
| 关 键 词： | 化学平衡 离子交换树脂 花青素 重铬酸钾 化学实验教学 |
Using Ion Exchange Resin to Explore the Effect of Concentration on Chemical Equilibrium |
| |
| LAI Yao,HUANG Ping,LI Yue,RAN Ming.Using Ion Exchange Resin to Explore the Effect of Concentration on Chemical Equilibrium[J].Journal of Chemical Education,2022,43(3):116-119. |
| |
| Authors: | LAI Yao HUANG Ping LI Yue RAN Ming |
| |
| Affiliation: | College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China |
| |
| Abstract: | In this paper,the reversible reaction of anthocyanins and potassium dichromate solution was used to explore the effect of concentration on chemical equilibrium by adding cation exchange resin without changing the concentration of other substances in the solution.Experimental instruments are simple,reagents are easy to obtain,phenomena are obvious and time is short.It can be used as classroom demonstration experiment or student experiment,and provide real scenes and inquiry cases for classroom teaching. |
| |
| Keywords: | chemical equilibrium ion exchange resin anthocyanin potassium dichromate chemical experiment teaching |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《化学教育》浏览原始摘要信息 |
|
点击此处可从《化学教育》下载全文 |
|
