Purpose: The purpose of the lab was to piddle several inglorious samples from 2 different suspects and find push through which suspect shot the gun in which hand.
Description: First, we were minded(p) a group number and our total to measure was found on that group number. After we veritable our number we then took our ducking of the violet coloured liquid and recorded its absorbtion in the spectrophotometer. Once we recorded that number we then used the former(a) spectrophotometers in the room to record the poesy for our solution. Once we had quaternion different numbers, which varied little by little, we then received our 3 samples of the unknown substance concentration to and recorded the well-off absorbed by using the spectrophotoers to learn which unknown had the great concentration of the violet liquid.
Materials: 4 10mL volumetric flasks
stoppers
tape
10 plastic disposable pipettes
Cuvette rack
500mico litre auto. Pipettes
Spectrophometer
……info….
We started out with 4 numbers that separated the four groups. These numbers were the concentration and the amount of the substance we needed. The numbers were 1mL = .000008 concentration, 1.5mL = .000012, 2mL = .000016, 2.5mL = .00002.
For the teams first measurements to discover the absorbance of their substance the numbers were as follows. aggroup one, average absorbtion rate was .765.
Group 2…avg. absorbation rate was 1.1000
Group 3 1.230
Group 4 avg. 1.776
Results: the results for the unknown were discovered using the spectrophotometer. Group As results for the unknowns were
1..760
8..815
9..806
Group B
2..774
7.728
10..802
Group C
3..885
6. 1.850
11. 0.825
Group D
4. 1.48
5. 1.51
12. 0.710
OBVIOUSLY #6 had the highest concentration of the violet liquid meaning he/she shot the gun.If you hope to get a full essay, order it on our website: Orderessay
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