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The mean indoor airborne chloroform (CHCI3)
concentration in a room was determined to be
0.4 pg/m3. Use the following data:
T = 293 K
P = 1 atmosphere
R = 82.05 x 10-6 atm.m3/mol-K
=
)
Atomic weights: C = 12, H = 1, CI = 35.5. The
concentration expressed in parts per billion
(volume basis, ppbv) is equal to -
a. 1.00 ppby
b. 0.20 ppby
Your Answer!
C. 0.10 ppbv
d. 0.08 ppby


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