Should we mine this Ore Essay Example | Topics and Well Written Essays - 500 words

Should we mine this Ore - Essay ExampleThe amount of cleverness that passed through the bases to the photocells is used to determine the absorbance of each resolving (Reynolds & Thompson 26).The equation of the standard curve is given by y =mx + b. Plotting a graph of absorbance against concentration for the standard declarations produces a curve that has a behave relationship with the equation of the standard curve (Bartlett 159). The direct relationship between concentration and absorbance for a solution is referred to as Beers law. Concentration of unknown compound send away be determined from the graph by measuring its absorbance. Its absorbance is located on the x-axis of the graph, and its corresponding concentration is determined on the y-axis. Concentration of the unknown solutions can also be established from the slope of the Beers law curve (Bartlett 159).A blank solution was and so prepared by filling the cuvette with distilled water to a volume of full. Care was t aken non to contaminate the cuvette while filling it. Spectrometer was then calibrated by placing a blank cuvette into the cuvette woodlet of the spectrometer (Reynolds & Thompson 160). In order to determine optimal wavelength for plotting this standard curve, 0.4 M standard solution was move in the cuvette slot. The cuvette was then rinsed twice with 1 mL solution in Test Tube 1, and then refilled to of its volume. The outside was wiped with a tissue paper and placed into the cuvette, and absorbance of the solution was measured (Bartlett 159). This process was repeated for solution 2-5 until their absorbances were obtained. The absorbance of each solution was recorded in the data table. The data recorded was used to draw a graph of absorbance Vs concentration. The concentration of Copper (II) sulfate was obtained from the graph by determining its corresponding reading on the y-axis.Among all the acids