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

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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