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| Home > JCE Print > Journal of Chemical Education > Issues >
1998
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April
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In the Laboratory
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Designing a Self-Contained Qualitative Analysis Test for Transition Metal Ions
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Y. S. Serena Tan, B. H. Iain Tan, Hian Kee Lee, Yaw Kai Yan, and T. S. Andy Hor
National University of Singapore, Department of Chemistry, Kent Ridge, Singapore 119260, REPUBLIC OF SINGAPORE
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April 1998
Vol. 75 No. 4
p. 456
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| Abstract |
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A challenging self-contained qualitative analysis test for transition metal compounds comprising nine unknowns was designed whereby the unknown solutions can be systematically identified, without relying on external reagents, by inter-mixing the unknown samples. The names of the samples are made known, but their correspondence with the samples is concealed. A representative range of transition metal compounds was selected, together with two complementary main-group compounds. This "9-bottle" test encourages logical deduction and analytical thinking and cannot be negotiated by pure regurgitation of memorized facts. It is also more environment-friendly as it avoids the use of any external reagents, thereby reducing waste and circumventing the disposal problems.
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| More Information |
 Citation |
Y. S. Serena Tan, B. H. Iain Tan, Hian Kee Lee, Yaw Kai Yan, and T. S. Andy Hor. J. Chem. Educ. 1998 75 456.
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Keywords |
Qualitative Analysis, Transition Elements
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History |
Created:
Last Updated: |
June 25, 1999
June 24, 2005
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| Home > JCE Print > Journal of Chemical Education > Issues >
1998
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April
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456
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