Graph 4 demonstrates the correlation between the transmittance and concentration levels of KMnO4, in how as the levels of concentration increase, the transmittance decreases.
The experiment during week 2 was very similar to week 1 except we used potassium phosphate instead of potassium permanganate. Table 3 demonstrates the effect of wavelength on T% and absorbance. The same equation used for Table 2 was used in Table 3 in order, to calculate the absorbance. The highest absorbance level was .300, which was at 400 nm, making 400 nm the analytical wavelength. Four different concentrations of Potassium Sulfate were than made and Table 4 demonstrated how the level of concentration of KH2PO4 affected T% and absorbance. The % transmittance ranged between 17.9%-66.3%, while, the absorbance ranged from .18 to .75. Graph 5 and Graph 6 displayed Table 4’s conclusions and the relationship between concentration of Phosphate and % transmittance and between concentration of Phosphate and absorbance became visual. As the concentration of a Phosphate increased, the % transmittance decreased until eventually, leveling off (Table 5). In Table 6, as the concentration of a Phosphate increased, the absorbance level increased as well. The line of best fit for concentration of Phosphate vs. absorbance level was equal to y=1607.5x+0.0075 with x equaling concentration and y …show more content…
Pepper, & Mountain Dew). The colas were diluted by 50 milliliters of water, which is the dilution coefficient. The dilution coefficient will later be used in order to calculate the true concentration of the colas. We than determined the transmittance and absorbance values of each individual cola as seen in Table 5. In order to calculate the concentration of the diluted solution, the equation of the line of best fit was used.
The experiment during week 2 was very similar to week 1 except we used potassium phosphate instead of potassium permanganate. Table 3 demonstrates the effect of wavelength on T% and absorbance. The same equation used for Table 2 was used in Table 3 in order, to calculate the absorbance. The highest absorbance level was .300, which was at 400 nm, making 400 nm the analytical wavelength. Four different concentrations of Potassium Sulfate were than made and Table 4 demonstrated how the level of concentration of KH2PO4 affected T% and absorbance. The % transmittance ranged between 17.9%-66.3%, while, the absorbance ranged from .18 to .75. Graph 5 and Graph 6 displayed Table 4’s conclusions and the relationship between concentration of Phosphate and % transmittance and between concentration of Phosphate and absorbance became visual. As the concentration of a Phosphate increased, the % transmittance decreased until eventually, leveling off (Table 5). In Table 6, as the concentration of a Phosphate increased, the absorbance level increased as well. The line of best fit for concentration of Phosphate vs. absorbance level was equal to y=1607.5x+0.0075 with x equaling concentration and y …show more content…
Pepper, & Mountain Dew). The colas were diluted by 50 milliliters of water, which is the dilution coefficient. The dilution coefficient will later be used in order to calculate the true concentration of the colas. We than determined the transmittance and absorbance values of each individual cola as seen in Table 5. In order to calculate the concentration of the diluted solution, the equation of the line of best fit was used.