2. Determine the concentration (mg/m and ppm) of benzene in a closed room (300 m³) if 3.20 grams are spilled. Assume that it all evaporates instantaneously, and that the air in the room is well mixed. Next, allow the room's air to change once in 20 minutes. How long will it take until the concentration in the room is reduced by 50%? How long until the concentration is below the recommended NIOSH limit (1 ppm)? Note that 1 ppm is equivalent to 3.25 mg/m for benzene.
2. Determine the concentration (mg/m and ppm) of benzene in a closed room (300 m³) if 3.20 grams are spilled. Assume that it all evaporates instantaneously, and that the air in the room is well mixed. Next, allow the room's air to change once in 20 minutes. How long will it take until the concentration in the room is reduced by 50%? How long until the concentration is below the recommended NIOSH limit (1 ppm)? Note that 1 ppm is equivalent to 3.25 mg/m for benzene.
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
Section: Chapter Questions
Problem 49RGQ: Fluoridation of city water supplies has been practiced in the United States for several decades. It...
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