Expt 2 - Template for Lab Report - Beer's Law - NAMES...

NAMES: SECTION #:
EXPERIMENT 2
BEER’S LAW
Part A: Measuring the Absorbance of a Stock Solution
Assigned MiO
®
liquid:
Volume of MiO ® liquid used to prepare the stock solution:
Concentration of the stock solution: mLMiO/mLSoln
Value of 
max
of the stock solution:
Wavelength set on the colorimeter
to measure the absorbance of the stock solution:
Average Absorbance of the stock solution:
Part B: Preparing the Beer’s Law Plot
Complete the table:
Volume of Stock Solution
Diluted (mL)
Concentration of Diluted
Solution
(mLMiO/mLSoln)
Average Absorbance
Show how you calculated the concentration for one of the solutions:
Attach a plot of absorbance ( y -axis) vs. concentration ( x -axis) to this report. Use Microsoft Excel
®
to plot the data
including an additional data point of zero-absorbance (y-axis) and zero-concentration (x-axis). You should have a
total of 7 points on your graph. Add a trend line and include the equation and R 2 value on the graph. Do not set the
intercept equal to zero. Your graph should include a title and both axes labeled with appropriate units.