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The answer must be 5.4 mg/L A small storage cabinet 2mx2mx3m high contains an open 208-L (55-gal) drum of aqueous TCE (Molecular weight = 131

The answer must be 5.4 mg/L

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A small storage cabinet 2mx2mx3m high contains an open 208-L (55-gal) drum of aqueous TCE (Molecular weight = 131 g/mole) at a concentration of 120 mg/L. The cabinet has been closed for over 2 months, so equilibrium conditions have been established. What is the TCE concentration in the water phase at this time? Assume that the temperature is 25 C. (Hint: Use idea gas law and TCEs Henry's law constant of 0.0091m3.atm/mole; use mole in mass balance calculation; Answer: TCE concentration in water is 5.4 mg/L)

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