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

• Type: Another Publication in an International Scientific Journal
• Date: 2025

Authors

Cachichi, RC (Author) Other; Aviles, IEC (Author) Other; Barbosa, MF (Author) Other; Carla Morais (Author) FCUP; Girotto, GG Jr (Author) Other; Galembeck, E (Author) Other

Journal

Title: Journal of Chemical Education

Vol. 102

Pages: 1703-1708

ISSN: 0021-9584

Publisher: American Chemical Society

Indexing

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Other information

Authenticus ID: P-018-ACX

DOI: 10.1021/acs.jchemed.4c01006

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6