A subsurface soil is contaminated by a spill of benzoic acid. The soil has a porosity (h ) of 35%, a degree of water saturation ( S ) of 30%, a bulk density (r b ) of 1.6 g/cm3 , and a fraction of organic carbon ( foc ) of 4%. What is the total mass ( mtot ) of benzoic acid that can exist in 1 L of the system before free phase begins to be present? Benzoic Acid: MW: 122.12 Henry’s Law Constant (atm m 3 / mol): 7.02x10 -8 Vapor Pressure (mm Hg): 0.0045 (25 deg C) Log K oc : 2.0
A subsurface soil is contaminated by a spill of benzoic acid. The soil has a porosity (h ) of 35%, a degree of water saturation ( S ) of 30%, a bulk density (r b ) of 1.6 g/cm3 , and a fraction of organic carbon ( foc ) of 4%. What is the total mass ( mtot ) of benzoic acid that can exist in 1 L of the system before free phase begins to be present? Benzoic Acid: MW: 122.12 Henry’s Law Constant (atm m 3 / mol): 7.02x10 -8 Vapor Pressure (mm Hg): 0.0045 (25 deg C) Log K oc : 2.0
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A subsurface soil is contaminated by a spill of benzoic acid. The soil has a
porosity (h ) of 35%, a degree of water saturation ( S ) of 30%, a bulk density (r b ) of 1.6 g/cm3 , and a fraction of organic carbon ( foc ) of 4%. What is the total mass ( mtot ) of
benzoic acid that can exist in 1 L of the system before free phase begins to be present?
Benzoic Acid:
MW: 122.12
Henry’s Law Constant (atm m 3 / mol): 7.02x10 -8
Vapor Pressure (mm Hg): 0.0045 (25 deg C)
Log K oc : 2.0
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