A Novel Acid–Base Titration Designed Using Consumer Products: An Experiment for Introductory and General Chemistry Laboratories

TCE

The Chemical Educator

ISSN: 1430-4171 (electronic version)

Table of Contents

Abstract Volume 10 Issue 2 (2005) pp 136-141

A Novel Acid–Base Titration Designed Using Consumer Products: An Experiment for Introductory and General Chemistry Laboratories

Shui-Ping Yang

Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan; yangsp@cc.ncue.edu.tw
Received October 11, 2004. Accepted November 30, 2004.

Published online: 2 March 2005

Abstract. In this article, a novel acid–base titration designed using consumer products is presented as an experiment for quantitative analysis and is also suitable for introductory and general chemistry laboratories. 100% grape juice is used as an acid–base indicator and a Bayer aspirin tablet is a good primary standard acid. Small and medium-sized syringes are used as the pipet and buret, respectively. There is no significant difference in the accuracy and precision of the acid content of the three acidic samples between the novel and regular acid–base titrations as determined by the instructor, and there is almost no significant difference in the accuracy and precision of the acid content in these samples between values of the acid content obtained by the instructor and the students when using this novel acid–base titration.

Key Words: Laboratories and Demonstrations; general chemistry; introductory chemistry; acid-base titration; and consumer productsspectrometry

(*) Corresponding author. (E-mail: yangsp@cc.ncue.edu.tw)

Article in PDF format (352 KB) HTML format

Supporting Materials:

Student handouts including an introduction, for more information, detailed procedures, prelaboratory exercises, a report sheet, postlaboratory questions, and instructions for the teacher that contain a student’s report data and solutions to pre- and postlaboratory questions are available as supporting material (408 KB).