п»їDetermining the Concentration of your solution: Beer's Law
In this laboratory of Identifying the focus of a unidentified solution: Drinks Law. All of us determined the concentration of your unknown CuSO4 solution simply by measuring it is absorbance while using colorimeter. With all the calculations we were able to resolve the linear regression Formula of absorbance vs . attentiveness and the alternate method. Elements
Vernier LabPro or CBL 2 program. 40 Meters CuSO4 solution Computer or handheld CuSO4 unknown answer Vernier Colorimeter Pipet pump or pump bulb one cuvette Unadulterated water five 20*150 millimeter test tubes test pipe rack two 10 mL pipets or graduated cylinders stirring rod
two 90 mL beakers
1 ) Obtain and wear glasses.
2 . Attain small volumes of prints of 0. 40 M CuSO4 option and unadulterated water in separate beakers. 3. Labeled four clean, dry, check tubes 1вЂ“4. Use pipets to prepare five standard solutions according to the chart below. Thoroughly mix every solution with a stirring fly fishing rod. Clean and dry the stirring rod among uses. Path number
zero. 40 M CuSo4 (mL)
Distilled INGESTING WATER (mL)
4. Create the data collection system. Connect the LabPro or CBL 2 interface to the computer or portable with the proper cable. a) Connect a colorimeter to channel one of the interface
b) Start the data collection system. Be sure this software shows right reading pertaining to the colorimeter. c) Build data collection for events with entrance.
d) Stick to the appropriate procedure for calibrate the colorimeter.
5. Collect and record the absorbance values for each from the five requirements solutions. Print out a graph of absorbance vs . attention.
6. Gather and record the absorbance value for the not known solution you have been...