Prev. Article Next Article Table of Contents

Article

Determination of the Empirical Formula of a Copper Oxide Salt Using Two Different Methods

Your current credentials do not allow retrieval of the full text.

Purchase the full-text

PDF/HTML,
figures/images,
references and tables,
(where available)

Kimberly Geer

Grundy Center High School, Grundy Center, IA 50638

Michael J. Sanger

Department of Chemistry, University of Northern Iowa, Cedar Falls, IA 50614-0423

J. Chem. Educ., 2002, 79 (8), p 994

DOI: 10.1021/ed079p994

Publication Date (Web): August 1, 2002

Abstract

In this experiment, students convert a copper oxide salt to copper metal by two chemical methods, one using methane gas in the solid state and one using aluminum metal in an aqueous solution. This method works for both copper(I) oxide and copper(II) oxide. Students determine the mass of copper metal produced from a given amount of copper oxide and plot this data for the entire class for each chemical method. The slope of these plots provides a measure of the mass fraction of the copper oxide salt that is copper, and the empirical formula of the salt is determined for each chemical method using the slope.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Oxidation / Reduction

View: Hi-Res PDF | PDF w/ Links

Citing Articles

View all 1 citing articles

Citation data is made available by participants in CrossRef's Cited-by Linking service. For a more comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.

This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Oxalate Synthesis and Pyrolysis: A Colorful Introduction to Stoichiometry
Michael W. Vannatta and Michelle Richards-Babb, Robert J. Sweeney
Journal of Chemical Education2010 87 (11), 1225-1229
- Oxalate Synthesis and Pyrolysis: A Colorful Introduction to Stoichiometry
  Michael W. Vannatta and Michelle Richards-Babb, Robert J. Sweeney
  Journal of Chemical Education2010 87 (11), 1225-1229
  Metal oxalate synthesis and pyrolysis provides an opportunity for students to (i) learn stoichiometry, (ii) experience the consequences of proper stoichiometric calculations and experimental techniques, and (iii) be introduced to the relevance of ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links