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ERIC Number: EJ1079259
Record Type: Journal
Publication Date: 2015-Oct
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0021-9584
Determining the Amount of Copper(II) Ions in a Solution Using a Smartphone
Montangero, Marc
Journal of Chemical Education, v92 n10 p1759-1762 Oct 2015
When dissolving copper in nitric acid, copper(II) ions produce a blue-colored solution. It is possible to determine the concentration of copper(II) ions, focusing on the hue of the color, using a smartphone camera. A free app can be used to measure the hue of the solution, and with the help of standard copper(II) solutions, one can graph a calibration curve to determine the concentration of copper in solution and calculate the mass of copper that has been dissolved or, for example, the percentage of copper in an alloy.
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Secondary Education; High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A