Tuesday, May 15, 2012

Beer's Law

In the begining we got 4 beakers and labeled them from one to four. The first beaker we put 2 mL of NiSo4, the second beaker got 4 mL, The third got 6 mL,  and the fourth one got 8 mL. We then got the pipet and put 8 mL of distilled water in the first beaker, 6 mL in the second, 4 mL in the third, and then 2 mL in the last one. All the beakers then got stirred up with a stirring rod.
Trial Number
0.40 M NiSo4 (mL)Distilled H2O (mL)Concentration
1280.08
2460.16
3640.24
4820.32
5~1000.40

Then in the macbook we opened up to "Exp 11 colorimeter". We created our graphs on it and calibrated our colorimeter to help us out during the experiment. When using the colormeter we had to be gentle when handling the cuvette and clean it before we used it. Then we put 3/4 of each solution in the cuvette then copied the results.

TrialConcentration (mol/L)Absorbance
10.080.124
20.16.238
30.24.714
40.32.740
50.40.880
6Unkown number 3.661
Concentration of Unknown0.24 mol/L

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