copper cycle prelab - 5) Obtain 1-2 mL of nitric acid in a...

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Experiment 41 Prelab Exercises The Copper Cycle Chemistry 120 March 31, 2008 Section 009 Thompson 1. Problem Statement The objective of this experiment is to test four regents (Nitric Acid, Sodium Hydroxide, Sulfuric Acid, Zinc) with the copper material to form, three different compounds. Each compound will be mixed with another soluble until the final soluble is added to the last compound. The final result should be the starting component, copper. 2. Proposed Procedures 1) Before the testing of the copper cycle, small test tube must be run on the reagents to tell rather or not the soluble and the insoluble react with one another. 2) This is to be the determining factor on which materials to use in the copper cycle. 3) Once the tests have been made and the results are recorded the best possible insoluble and soluble should be chosen to produce copper once again as the final product. 4) Obtain 0.2-0.4 grams of copper wire in a small test tube.
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Unformatted text preview: 5) Obtain 1-2 mL of nitric acid in a small test tube. 6) Slowly add the nitric acid to the copper using a pipette. 7) Using a Bunsen burner, place the test tube over a cool flame. 8) Heat slowly for 2-3 minutes. 9) Record all reactions that occur during compound mix. 10)Obtain 1-2 mL of sodium hydroxide in a small test tube. 11)Add this to the previous compound using pipette. 12)Place mixture over cool flame for 2-3 minutes. 13)Obtain 1-2 mL of sulfuric acid and pour into compound carefully. 14)Place mixture over cool flame for 2-3 minutes. 15)Obtain a pinch of zinc in a small test tube. 16)Add to previous mixture. 17)Place over cool flame for 2-3 minutes. 18)Use vacuum filtration to isolate copper. 19)While mixture is still in Buchner funnel, wash the copper with 3-5 mL of acetone and draw air through filter for about 2 minutes. 20)Empty copper product onto weighing paper and record mass. 3. Copper Cycle...
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This note was uploaded on 04/07/2008 for the course CHEM 120 taught by Professor Nyssen during the Spring '07 term at University of Tennessee.

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copper cycle prelab - 5) Obtain 1-2 mL of nitric acid in a...

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