How many atomic layers of zinc are in a galvanized iron coating? An experiment for general chemistry laboratory

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Abstract

An experiment using a gasometric assembly to determine the thickness and a number of atomic layers of zinc in a galvanized iron coating is described. The number of atomic layers of zinc is solved using three skills: a guided-inquiry approach, data processing, and guided problem solving. The gasometric assembly used is made up of a graduated pipet. Rubber tubing, a test tube, and detergent. An ascending bubble layer inside the pipet is observable during the zinc reaction with acid. The result suggests that weight percent, thicknesses, and the number of atomic layers of zinc coating on galvanized iron substrates can be reproducibly obtained using the novel gravimetry and gasometry assembly.

Original languageEnglish
Pages (from-to)1792-1794
Number of pages3
JournalJournal of Chemical Education
Volume84
Issue number11
Publication statusPublished - 2007 Nov 1

Fingerprint

Zinc
chemistry
Iron
Coatings
experiment
Zinc coatings
Gravimetric analysis
Experiments
Rubber
Tubing
Detergents
Acids
Substrates

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Education

Cite this

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How many atomic layers of zinc are in a galvanized iron coating? An experiment for general chemistry laboratory. / Yang, Shui-Ping.

In: Journal of Chemical Education, Vol. 84, No. 11, 01.11.2007, p. 1792-1794.

Research output: Contribution to journalArticle

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