To Determine the Percentage of Copper in a Brass Screw Using a Computer Interface with a Colorimeter.

Horgan, Joan; Hedge, Robyn

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Peer reviewed

ERIC Number: EJ551202

Record Type: Journal

Publication Date: 1997

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: ISSN-0045-0855

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To Determine the Percentage of Copper in a Brass Screw Using a Computer Interface with a Colorimeter.

Horgan, Joan; Hedge, Robyn

Australian Science Teachers Journal, v43 n2 p40 Jun 1997

Year 11 students investigated the real-world problem of whether screws are really brass. It allowed them to use the colorimeter and computer interface in a way that was easily understood and models normal practice in testing laboratories. Screws were dissolved in nitric acid and their absorbance of red light was compared with a standard curve. (PVD)

Descriptors: Chemistry, Computer Interfaces, Computer Uses in Education, Foreign Countries, Hands on Science, High Schools, Laboratory Equipment, Laboratory Experiments, Laboratory Procedures, Science Education, Teaching Methods

Publication Type: Guides - Classroom - Teacher; Journal Articles; Reports - Descriptive

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Identifiers - Location: Australia

Grant or Contract Numbers: N/A

Author Affiliations: N/A