7. Beer's Law calibration Plot? Which of the following statements describe R? and its significance in a a. R? describes the molar absorptivity for a Beer's Law Calibration plot. R2 should equal a number greater than 0 since absorbance must be a positive number. b. R? describes the path length in beer's law. For a Beer's Law Calibration plot R2 should equal to 1 since the length of the cuvette is 1.0 cm. c. R describes the goodness of fit for a linear plot. For a Beer's Law Calibration plot, R should equal to 1 since the concentration of a solution is directly proportional to the absorbance of the solution. d. R? describes the slope for a Beer's Law Calibration plot. R should equal a number greater than 0 but less than 1 since the slope is equivalent to 1/concentration in the plot.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Project 2: Kinetics of Aluminum Corrosion
Experiment 4 - Determining the molar absorptivity of copper(II) chloride
2.50 x 103
0.133
0.225
4.20 x 103
6.00 x 103
7.50 x 103
1.20 x 102
0.342
0.467
0.750
7.
Which of the following statements describe R? and its significance in a
Beer's Law calibration Plot?
a. R2 describes the molar absorptivity for a Beer's Law Calibration plot. R2
should equal a number greater than O since absorbance must be a
positive number.
b. R? describes the path length in beer's law. For a Beer's Law Calibration
plot R? should equal to 1 since the length of the cuvette is 1.0 cm.
c. R? describes the goodness of fit for a linear plot. For a Beer's Law
Calibration plot, R2 should equal to 1 since the concentration of a solution
is directly proportional to the absorbance of the solution.
d. R describes the slope for a Beer's Law Calibration plot. R should equal a
number greater than 0 but less than 1 since the slope is equivalent to
1/concentration in the plot.
11
/ 11
Transcribed Image Text:Project 2: Kinetics of Aluminum Corrosion Experiment 4 - Determining the molar absorptivity of copper(II) chloride 2.50 x 103 0.133 0.225 4.20 x 103 6.00 x 103 7.50 x 103 1.20 x 102 0.342 0.467 0.750 7. Which of the following statements describe R? and its significance in a Beer's Law calibration Plot? a. R2 describes the molar absorptivity for a Beer's Law Calibration plot. R2 should equal a number greater than O since absorbance must be a positive number. b. R? describes the path length in beer's law. For a Beer's Law Calibration plot R? should equal to 1 since the length of the cuvette is 1.0 cm. c. R? describes the goodness of fit for a linear plot. For a Beer's Law Calibration plot, R2 should equal to 1 since the concentration of a solution is directly proportional to the absorbance of the solution. d. R describes the slope for a Beer's Law Calibration plot. R should equal a number greater than 0 but less than 1 since the slope is equivalent to 1/concentration in the plot. 11 / 11
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