The following absorbance values for four solutions with known MnO4 concentrations were measured using a spectrophotometer: Solution 1 2 3 4 [MnO4] 0.700 x 10 4 M 1.00 x 104 M 2.00 x 104 M 3.50 x 104 M Absorbance 0.175 0.250 0.500 0.875 A. Using Microsoft Excel, plot a graph of Absorbance vs. Concentration of MnO4. Write the trendline linear equation from the plotted graph. B. Determine the slope of the graph and include its units. C. Determine the concentration of an unknown MnO4 sample whose absorbance is 0.780.

The following absorbance values for four solutions with known MnO4 concentrations were measured using a spectrophotometer: Solution 1 2 3 4 [MnO4] 0.700 x 10 4 M 1.00 x 104 M 2.00 x 104 M 3.50 x 104 M Absorbance 0.175 0.250 0.500 0.875 A. Using Microsoft Excel, plot a graph of Absorbance vs. Concentration of MnO4. Write the trendline linear equation from the plotted graph. B. Determine the slope of the graph and include its units. C. Determine the concentration of an unknown MnO4 sample whose absorbance is 0.780.

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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