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Copper and Zinc Composition Percentages in Pennies
Essay specific features
Written by:
Henry P
Date added:
January 18, 2015
Level:
University
Grade:
B
No of pages / words:
4 / 1071
Was viewed:
972 times
Rating of current essay:
Essay content:
The penny was dissolved to make aqueous copper ions and four copper dilutions were made from stock solution. Each cuvette sample was measured in a colorimeter and the data was plotted linearly using Beer's law plot. Mass percent and percent error were found using calculations. Analysis of class data provided further data to determine the copper and zinc composition percentages...
displayed 300 characters
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Analysis of class data provided further data to determine the copper and zinc composition percentages.
Experimental Procedure. A penny was weighed on a digital scale. About 15 mL of 10 M HNO3 was measured and placed into medium sized beaker. The beaker was placed under the fume hood and penny was added to the solution...
displayed 300 characters
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