The mean indoor airborne chloroform (CHCl3) concentration in a room wa – McqOptions

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1.	The mean indoor airborne chloroform (CHCl3) concentration in a room was determined to be 0.4 mg/m . Use the following data: T = 293 K, P = 1 atmosphere, R = 82.05 10 6 atm. m /mol-K, Atomic weights: C = 12, H = 1, Cl = 35.5. This concentration expressed in parts per billion (volume basis, ppbv) is equal to
A.	1.00 ppbv
B.	0.20 ppbv
C.	0.10 ppbv
D.	0.08 ppbv
Answer» E.

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