Answered: a. Calculate the Langmuir constants.…

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?

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter4: The Structure Of The Atom

Section: Chapter Questions

Problem 4STP

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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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