Submitted by: Submitted by ipelayo1995
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Category: Science and Technology
Date Submitted: 12/03/2014 09:20 AM
Should We Mine This Ore? Group 2: Zhoumai Jiang, Brenden Dallas, Shaniya Tallman, Ines Pelayo L10(70287) Wednesday, 10:30am12:20pm, room # PSH33 TA: Bryan Donaphon Introduction The geothermal activity underground will arise the copper and other ore. Geologists assessing characteristic geological features to locate ore deposits, they drill holes to take the crush rocks up as a sample to analysis what is the composition in the ore. So in this investigation, the purpose is to develop a method to determining the density of copper(II) ion solution and determining how much copper(II) is exist in the ore sample. From this investigation, we will use the spectrometer device for measuring and record the light absorbance of the solution in the different density. After that we will find the relationship between the light absorbance and density. In the end we can use this relationship to define how much the copper in the ore sample. Procedure/ Experimental There were certain materials that were needed to perform this experiment. These materials included copper ore, distilled water, beakers, test tubes, cuvettes and a colorimeter. In week 1, the group figured out the concentration of the solution Cu(NO3 )+ 2.5 H2O. The group calibrated the calorimeter to make sure the results were accurate. To do this, distilled water was poured into a cuvette and placed inside the colorimeter. Then, the cuvette was placed into the calorimeter at four different intensities to find which intensity was most fitting for the copper and acid. The group found that 635nm on the colorimeter would be the best for the solution. After finding these results, the stock solution was separated into six different concentrations. Then, the
six concentrations were placed in the calorimeter to record the absorbance and the results were recorded. On week 2, the group added 0.5 grams of ore with 2 mL of the following acids (HNO3, ...