3. The figure below shows a Beer's Law plot for the absorbance of 5 different known solutions of crystal violet along with the equation for the linear regression line (trend line). a. For the equation of the line, what do "x" and "y" each represent? X: y: Absorbance 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 CHIVE 102 Beer's Law Plot for Crystal Violet y=6.66E+04x-1.51E-02 R²=9.99E-01 0.00E+00 2.00E-06 4.00E-06 6.00E-06 8.00E-06 1.00E-05 1.20E-05 [crystal violet] (M) b. A sample containing an unknown concentration of crystal violet has an absorbance of 0.231. Calculate its crystal violet concentration using the linear regression equation in the figure. Show your calculation.

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CHM 102
3. The figure below shows a Beer's Law plot for the absorbance of 5 different known solutions
of crystal violet along with the equation for the linear regression line (trend line).
a. For the equation of the line, what do
"x" and "y" each represent?
X:
y:
Absorbance
0.700
0.600
0.500
0.400
0.300
0.200
0.100
0.000
Beer's Law Plot for Crystal Violet
y = 6.66E+04x-1.51E-02
R²=9.99E-01
0.00E+00 2.00E-06 4.00E-06 6.00E-06 8.00E-06 1.00E-05 1.20E-05
[crystal violet] (M)
b. A sample containing an unknown concentration of crystal violet has an absorbance of
0.231. Calculate its crystal violet concentration using the linear regression equation in
the figure. Show your calculation.
Transcribed Image Text:CHM 102 3. The figure below shows a Beer's Law plot for the absorbance of 5 different known solutions of crystal violet along with the equation for the linear regression line (trend line). a. For the equation of the line, what do "x" and "y" each represent? X: y: Absorbance 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 Beer's Law Plot for Crystal Violet y = 6.66E+04x-1.51E-02 R²=9.99E-01 0.00E+00 2.00E-06 4.00E-06 6.00E-06 8.00E-06 1.00E-05 1.20E-05 [crystal violet] (M) b. A sample containing an unknown concentration of crystal violet has an absorbance of 0.231. Calculate its crystal violet concentration using the linear regression equation in the figure. Show your calculation.
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