Answered: X gas concentration is given in a…

X gas concentration is given in a workplace atmosphere below. What is the Time weighted average (TWA) for 8 hours? For 2 hours 100ppm For 5 hours 200ppm For 1 hour 50

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter9: Energy For Today

Section: Chapter Questions

Problem 9E

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X gas concentration is given in a workplace atmosphere below. What is the Time weighted average (TWA)
for 8 hours?
For 2 hours 100ppm
For 5 hours 200ppm
For 1 hour 50
O a. 345.62
O b. 25.26
O c. 116.7
O d. 156.25
O e. 112.21

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