ERIC Number: EJ1040114
Record Type: Journal
Publication Date: 2014-Sep
Abstractor: As Provided
Filling a Plastic Bag with Carbon Dioxide: A Student-Designed Guided-Inquiry Lab for Advanced Placement and College Chemistry Courses
Lanni, Laura M.
Journal of Chemical Education, v91 n9 p1390-1392 Sep 2014
A guided-inquiry lab, suitable for first-year general chemistry or high school advanced placement chemistry, is presented that uses only inexpensive, store-bought materials. The reaction of sodium bicarbonate (baking soda) with aqueous acetic acid (vinegar), under the constraint of the challenge to completely fill a sealable plastic bag with the gaseous carbon dioxide product, is presented to students of chemistry. Students must marshal their knowledge of non-STP gas stoichiometry, including the often misunderstood concept of limiting and excess reagents, to successfully complete the task. This contribution is part of a special issue on teaching introductory chemistry in the context of the advanced placement (AP) chemistry course redesign.
Descriptors: Advanced Placement, Chemistry, College Science, Inquiry, Laboratory Experiments, Introductory Courses, Hands on Science, Teaching Methods, Stoichiometry, Discovery Learning, Undergraduate Students, High School Students, Science Experiments, Scientific Concepts, Hazardous Materials
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education; High Schools; Secondary Education
Authoring Institution: N/A