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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 20 (2015) pp 6-8

Guided Inquiry and Discovery in General Chemistry: Solubility Product and Common Ion Effect

Arun K. Sharma

Department of Chemistry & Physics, Wagner College, New York, NY, USA,
Received September 29, 2014. Accepted December 17, 2014.

Published: 16 January 2015

Abstract. The teaching of laboratories in the General Chemistry curriculum is an opportunity for educators to provide students with a flavor of the practice of Chemistry. We present a guided inquiry and discovery oriented approach to presenting experiments in the General Chemistry laboratory. Our presentation requires students to design and implement an investigation in response to a scientific question. Students are provided with a guiding set of questions, leading them to design and implement an experimental investigation. Such an approach mirrors the process of scientific experimental design and research. We present a solubility product experiment within our paradigm of first year chemistry experiments. The experiment involves discovery of the common ion effect from the experimental data and calculations. A work sheet with guiding questions is provided as a supporting document for easy integration into an existing curriculum.

Key Words: Laboratories and Demonstrations; general chemistry; solubility product; common ion effect; guided inquiry

(*) Corresponding author. (E-mail:

Article in PDF format (23 KB) HTML format

Supporting Materials:

Laboratory handout for this experiment (6 KB).

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