Investigation 20

Investigation 20 - Justin Benson CHM 113 Lab TA: Jeanette...

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Justin Benson CHM 113 Lab TA: Jeanette Nangreave Investigation 20: Should We Mine This Ore? Introduction: In chemistry, chemical reactions are used to produce the items we use on a daily basis. This applies even more so to the production of pure metals because metals such as copper come out of the ground as ores or minerals such as chrysocolla (CusiO 3 ∙2H 2 O). The metals companies are faced with a problem of separating the copper from the ore. Spectrometry and basic algebra were used to develop a method of separating the copper(II) ion solution and dictating that percent composition of copper(II) present in the ore sample Experimental: Materials - Processed copper ore - Cu(NO 3 ) 2 ∙3H 2 O(s) (Known Amount) - 6 M HNO 3 (aq) - Filter Paper - Device to filter out copper/acid solution from solid ore - Colorimeter - Cuvettes - Balances - Graduated Cylinder - Glass Beakers - Pipettes Procedure Part 1: 1. 23.82g of the processed copper ore was mixed with 25mL of nitric acid (HNO 3 ). 2. The blue copper(II) ion solution was then separated from the ore using filtration 3. The colorimeter was then calibrated to 653nm (Red) using only nitric acid. 4.
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This lab report was uploaded on 04/06/2008 for the course CHM 113 taught by Professor Anbar during the Fall '06 term at ASU.

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Investigation 20 - Justin Benson CHM 113 Lab TA: Jeanette...

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