A New Proposal for Inquiry Activity Using a Low-Cost Remote Acid–Base Titration

IF 2.5 3区教育学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Chemical Education Pub Date : 2025-03-10 DOI:10.1021/acs.jchemed.4c0100610.1021/acs.jchemed.4c01006

Ricardo Cenamo Cachichi*, Ivana Elena Camejo Aviles, Mayara Ferreira Barbosa, Carla Susana Lopes Morais, Gildo Girotto Junior and Eduardo Galembeck,

引用次数: 0

Abstract

An acid–base titrator connected to the Internet was developed for conducting remote investigative experiments. The experiment was broadcasted in a high school senior classroom, with the presence of a facilitating teacher. The activity required students to determine the indicator present in the solution. To carry out the activity, students added acid or base to sweep the pH range from 0 to 14 and noted the corresponding coloration to the pH through video analysis. The results obtained were very satisfactory, both in the identification of the indicator and in the acceptance and engagement of the students in the activity.

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一种低成本远程酸碱滴定法研究活性的新方案

为进行远程调查实验，开发了连接到互联网的酸碱滴定器。这个实验在一所高中的高年级教室里进行了直播，有一位老师在场指导。该活动要求学生确定溶液中存在的指标。为了开展活动，学生们加入酸或碱，扫过pH值从0到14的范围，并通过视频分析记录pH值对应的颜色。所获得的结果是非常令人满意的，无论是在指标的识别，并在学生的接受和参与活动。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Chemical Education 化学-化学综合

CiteScore

5.60

自引率

50.00%

发文量

465

审稿时长

6.5 months

期刊介绍： The Journal of Chemical Education is the official journal of the Division of Chemical Education of the American Chemical Society, co-published with the American Chemical Society Publications Division. Launched in 1924, the Journal of Chemical Education is the world’s premier chemical education journal. The Journal publishes peer-reviewed articles and related information as a resource to those in the field of chemical education and to those institutions that serve them. JCE typically addresses chemical content, activities, laboratory experiments, instructional methods, and pedagogies. The Journal serves as a means of communication among people across the world who are interested in the teaching and learning of chemistry. This includes instructors of chemistry from middle school through graduate school, professional staff who support these teaching activities, as well as some scientists in commerce, industry, and government.