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Demonstration Extension: Copper-to-Silver-to-Gold Penny Demonstration

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Ed Vitz

Department of Physical Sciences, Kutztown University, Kutztown, PA 19530

J. Chem. Educ., 2008, 85 (10), p 1381

DOI: 10.1021/ed085p1381.1

Publication Date (Web): October 1, 2008

Section:

History, Education, and Documentation

Abstract

This demonstration, if done in the original way, can lead to fires in waste containers (sometimes in the middle of the night after the experiment has been conducted), because pyrophoric zinc is generated by suspending powdered zinc in hot sodium hydroxide. This is avoided by using hot ZnSO₄.

Keywords (Audience):

First-Year Undergraduate / General

Keywords (Domain):

Demonstrations

Keywords (Feature):

JCE DigiDemos: Extensions

Keywords (Pedagogy):

Communication / Writing

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History

Received: August 03, 2009

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  Abstract:
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Demo

Demonstration Extension: Copper-to-Silver-to-Gold Penny Demonstration

Abstract

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Keywords (Pedagogy):

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History

Recommend & Share

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New Observations on the Copper-to-Silver-to-Gold Demonstration

The "Golden Penny" Demonstration: An Explanation of the Old Experiment and the Rational Design of the New and Simpler Demonstration.

A Simple Penny Analysis

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