Answered: a. Calculate the Langmuir constants.…

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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Question

b-Endosulfan is an organic insecticide commonly used on vegetables and
ornamental flowers. A carbon adsorption test was performed to evaluate adsorption of bEndosulfan to activated carbon. The data from the test are listed in the table below. The initial b-Endosulfan concentration for the test was 0.082 mg/L. The flask volume was 250 mL (0.25 L).

a. Calculate the Langmuir constants.

b. What qe (mass adsorbed/mass of carbon) would be required to attain a contaminant concentration of 0.02 mg/L?

Carbon Dose, mg
C, mg/L
0.082
0.2
0.052
0.625
0.017
1.25
0.008
2.5
0.004

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