Atrazine is a herbicide that is commonly used in the United States. The Henry's law constant of atrazine is 3 × 10−6 atm-L/mol or 1 × 10−7 (dimensionless) at 20 oC. The vapor pressure is 4 × 10−10 atm. a. Calculate the solubility of atrazine in soil pore water in mg/Lwater (Hint: use molecular weight of 216 g/mol to convert mol/L into mg/L). b.Calculated the concentration of atrazine in soil air in mg/Lair. c.What is the % of total atrazine mass in the soil gas? Assume the aquifer contaminated with atrazine has a residual gas saturation (i.e., the % of soil pores occupied by gas) of 15%.
Atrazine is a herbicide that is commonly used in the United States. The Henry's law constant of atrazine is 3 × 10−6 atm-L/mol or 1 × 10−7 (dimensionless) at 20 oC. The vapor pressure is 4 × 10−10 atm. a. Calculate the solubility of atrazine in soil pore water in mg/Lwater (Hint: use molecular weight of 216 g/mol to convert mol/L into mg/L). b.Calculated the concentration of atrazine in soil air in mg/Lair. c.What is the % of total atrazine mass in the soil gas? Assume the aquifer contaminated with atrazine has a residual gas saturation (i.e., the % of soil pores occupied by gas) of 15%.
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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Atrazine is a herbicide that is commonly used in the United States. The Henry's law constant of atrazine is 3 × 10−6 atm-L/mol or 1 × 10−7 (dimensionless) at 20 oC. The vapor pressure is 4 × 10−10 atm.
a. Calculate the solubility of atrazine in soil pore water in mg/Lwater (Hint: use molecular weight of 216 g/mol to convert mol/L into mg/L).
b.Calculated the concentration of atrazine in soil air in mg/Lair.
c.What is the % of total atrazine mass in the soil gas? Assume the aquifer contaminated with atrazine has a residual gas saturation (i.e., the % of soil pores occupied by gas) of 15%.
d. Can SVE be used to remediate atrazine-contaminated vadose zone? Justify your answer as to why or why not.
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