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Problem 6. B-Endosulfan is an organic insecticide commonly used on vegetables and ornamental flowers. A carbon adsorption test was performed to evaluate adsorption of B- Endosulfan 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 q. (mass adsorbed/mass of carbon) would be required to attain a contaminant concentration of 0.02 mg/L?

Problem 6. B-Endosulfan is an organic insecticide commonly used on vegetables and ornamental flowers. A carbon adsorption test was performed to evaluate adsorption of B- Endosulfan 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 q. (mass adsorbed/mass of carbon) would be required to attain a contaminant concentration of 0.02 mg/L?

Chemistry
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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**Problem 6.** β-Endosulfan is an organic insecticide commonly used on vegetables and ornamental flowers. A carbon adsorption test was performed to evaluate the adsorption of β-Endosulfan to activated carbon. The data from the test are listed in the table below. The initial β-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 \( q_e \) (mass adsorbed/mass of carbon) would be required to attain a contaminant concentration of 0.02 mg/L? **Note:** All graphs of data should be prepared using appropriate software (e.g., Excel, Matlab, etc.), and sample calculations should be provided for any work done using a spreadsheet. | Carbon Dose, mg | \( C_f, \text{ mg/L} \) | |-----------------|-------------------------| | 0 | 0.082 | | 0.2 | 0.052 | | 0.625 | 0.017 | | 1.25 | 0.008 | | 2.5 | 0.004 | Explanation: - The table provided shows the relationship between the carbon dose (in mg) and the equilibrium concentration \( C_f \) (in mg/L) of β-Endosulfan after treatment with activated carbon. - The Langmuir constants need to be calculated for the given data, which will help in understanding the adsorption process. - The task involves determining the mass of β-Endosulfan adsorbed per mass of carbon necessary to achieve a targeted concentration level. This information can be used for designing and optimizing water treatment processes using activated carbon.
Transcribed Image Text:**Problem 6.** β-Endosulfan is an organic insecticide commonly used on vegetables and ornamental flowers. A carbon adsorption test was performed to evaluate the adsorption of β-Endosulfan to activated carbon. The data from the test are listed in the table below. The initial β-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 \( q_e \) (mass adsorbed/mass of carbon) would be required to attain a contaminant concentration of 0.02 mg/L? **Note:** All graphs of data should be prepared using appropriate software (e.g., Excel, Matlab, etc.), and sample calculations should be provided for any work done using a spreadsheet. | Carbon Dose, mg | \( C_f, \text{ mg/L} \) | |-----------------|-------------------------| | 0 | 0.082 | | 0.2 | 0.052 | | 0.625 | 0.017 | | 1.25 | 0.008 | | 2.5 | 0.004 | Explanation: - The table provided shows the relationship between the carbon dose (in mg) and the equilibrium concentration \( C_f \) (in mg/L) of β-Endosulfan after treatment with activated carbon. - The Langmuir constants need to be calculated for the given data, which will help in understanding the adsorption process. - The task involves determining the mass of β-Endosulfan adsorbed per mass of carbon necessary to achieve a targeted concentration level. This information can be used for designing and optimizing water treatment processes using activated carbon.
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