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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