A Beer's Law Study

Nathan Bahn Beers Law Study Lab Introduction: In this lab, we utilize a spectrometer to observe the transmittance of airy at a certain wave length. We experimented to see if the breakwaterarity of a firmness of purpose changes the transmittance of crystallise and the absorbance of that light by the solution. By observing the percent transmittance and the criterion of light absorbed, we fag calculate the keep down of color absorbing components in the solution. by this process is how we are able to discover the amount of atomic number 29 in the solution. Experimental force: 250 mL of the copper solution was made by creating cytosine mL of the solution, reacting CuO with HNO3, and then diluting to the determine of 250 mL. Using this stock solution, variant concentrations were made and placed in the sprectrometer for observation. The absorbances and transmittances were recorded for use when identifying the amount of the color-absorbing copper ions later. A graph was plotted of Absorbance v. bulwarkar(a) Concentration easy see the results of the experiment. Pre-Lab Questions: 1. Absorbance = - Log10T = 2-Log10 (%T) a) 2 Log (89.95) = .0460f) 2 Log (28.18) = .5501 b) 2 Log (80.91) = .0920g) 2 Log (20.51) = .6880 c) 2 Log (59.02) = .2290h) 2 Log (17.38) = .7600 d) 2 Log (47.75) = .3210i) 2 Log (14.45) = .8401 e) 2 Log (34.83) = .

4580 2. Molar Concentration 1.213 g Cu (1 mol Cu/ 63.546 g Cu) (1 mol [Cu (H2O6)2+]/ 1 mol Cu) (1/ .100 L) = .191 M [Cu (H2O6)2+] a) M2 = (M1V1)/V2M2 = (.191 M [Cu (H2O6)2+])( 1.0 mL)/ (50.0 mL) = .0038 M b) (.191 M [Cu (H2O6)2+] ) (2.0 mL)/ (50.0 mL) = .0076 M c) (.191 M ! [Cu (H2O6)2+]) (5.0 mL)/ (50.0 mL) = .0191 M d) (.191 M [Cu (H2O6)2+]) (7.0 mL)/ (50.0 mL) = .0267 M e) (.191 M [Cu (H2O6)2+]) (10.0 mL)/ (50.0 mL) = .0382 M f) (.191 M [Cu (H2O6)2+]) (12.0 mL)/ (50.0 mL) = .0458 M g) (.191 M [Cu (H2O6)2+]) (15.0 mL)/ (50.0 mL) = .0573 M h) (.191 M [Cu (H2O6)2+]) (17.0 mL)/ (50.0 mL) = .0649 M i) (.191 M [Cu...If you ask to get a full essay, order it on our website: BestEssayCheap.com

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