Determine the appropriate Air Quality Standard for your contaminant. Indicate which standard you are using, which dictates the level and averaging time. Determine the volume of air and corresponding number of molecules of air in each breath 1. 2. and 24 hours. 3. Determine the maximum number of oxygen atoms due to your contaminant that you could be exposed (pure oxygen and other pollutants should be considered separately) Note: the various standards are based upon how the contaminants are measured and should not be factored into your 24 hour concentration. Selected air quality standard a. Sulfur Dioxide (SO2) – Primary standard at 75 ppb per 1 hour Volume and molecules 1. 2. a. Volume of air breathed in each breath = .5 liter i. Taken from lecture and basic internet validation b. Molecules of air in each breath = 1.344x1022 i. Molecules calculated by dividing 25,920 (breaths in 24 hours) by 3.483x1026 (molecules breathed in 24 hours) c. Volume of air breathed in 24 hours = 12,960 liters i. Calculation: .5 (liters per breath) x 25,920 (breaths in 24 hours) d. Molecules of air breathed in 24 hours = 3.483x1026 i. Calculation: 6.022x10²3 / 22.4 x .5 x 18 x 60 x 24 3. Maximum contaminant exposure a. SO2: 75 ppb or 0.0000075% of air breathed in over the course of 1 hour b. Molecules of air breathed in 1 hour = 3.483x1026 / 24 = 1.45x1025 SO, breathed in 1 hour = 1.45x1025 x 0.0000075 = 1.088x1020 d. Oz molecules in the SO2 compound breathed per hour (2/3 of the compound) = C. 1.088x1020 x .666 = 7.249x1019
Determine the appropriate Air Quality Standard for your contaminant. Indicate which standard you are using, which dictates the level and averaging time. Determine the volume of air and corresponding number of molecules of air in each breath 1. 2. and 24 hours. 3. Determine the maximum number of oxygen atoms due to your contaminant that you could be exposed (pure oxygen and other pollutants should be considered separately) Note: the various standards are based upon how the contaminants are measured and should not be factored into your 24 hour concentration. Selected air quality standard a. Sulfur Dioxide (SO2) – Primary standard at 75 ppb per 1 hour Volume and molecules 1. 2. a. Volume of air breathed in each breath = .5 liter i. Taken from lecture and basic internet validation b. Molecules of air in each breath = 1.344x1022 i. Molecules calculated by dividing 25,920 (breaths in 24 hours) by 3.483x1026 (molecules breathed in 24 hours) c. Volume of air breathed in 24 hours = 12,960 liters i. Calculation: .5 (liters per breath) x 25,920 (breaths in 24 hours) d. Molecules of air breathed in 24 hours = 3.483x1026 i. Calculation: 6.022x10²3 / 22.4 x .5 x 18 x 60 x 24 3. Maximum contaminant exposure a. SO2: 75 ppb or 0.0000075% of air breathed in over the course of 1 hour b. Molecules of air breathed in 1 hour = 3.483x1026 / 24 = 1.45x1025 SO, breathed in 1 hour = 1.45x1025 x 0.0000075 = 1.088x1020 d. Oz molecules in the SO2 compound breathed per hour (2/3 of the compound) = C. 1.088x1020 x .666 = 7.249x1019
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter1: The Nature Of Chemistry
Section: Chapter Questions
Problem 113QRT
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I want to remove my last question to show the work I have done and corrections I made.
Transcribed Image Text:Choose a hazardous air contaminant (CO, NO2, 03 or SO2)
Determine the appropriate Air Quality Standard for your contaminant. Indicate which
standard you are using, which dictates the level and averaging time.
Determine the volume of air and corresponding number of molecules of air in each breath
1.
2.
and 24 hours.
3.
Determine the maximum number of oxygen atoms due to your contaminant that you
could be exposed (pure oxygen and other pollutants should be considered separately)
Note: the various standards are based upon how the contaminants are measured and should not be
factored into your 24 hour concentration.
Selected air quality standard
a. Sulfur Dioxide (SO:) – Primary standard at 75 ppb per 1 hour
1.
2.
Volume and molecules
a. Volume of air breathed in each breath = .5 liter
i. Taken from lecture and basic internet validation
b. Molecules of air in each breath = 1.344x1022
i. Molecules calculated by dividing 25,920 (breaths in 24 hours) by 3.483x102s
(molecules breathed in 24 hours)
c. Volume of air breathed in 24 hours = 12,960 liters
i. Calculation: .5 (liters per breath) x 25,920 (breaths in 24 hours)
d. Molecules of air breathed in 24 hours = 3.483x1026
i. Calculation: 6.022x1023 / 22.4 x .5 x 18 x 60 x 24
3.
Maximum contaminant exposure
a. SO2: 75 ppb or 0.0000075% of air breathed in over the course of 1 hour
b. Molecules of air breathed in 1 hour = 3.483x1025 / 24 = 1.45x1025
SO, breathed in 1 hour = 1.45x1025 x 0.0000075 = 1.088x1020
d. O2 molecules in the SO2 compound breathed per hour (2/3 of the compound) =
C.
1.088x1020 x .666 = 7.249x1019
Expert Solution
Step 1
You've done a lot of mistakes i feel.
Firstly re read its written that treat pure oxygen and Pollutant seperatly also we only inhales Oxygen in our Nose ideally!
But here we have pollution too
Firstly in your second part use conditions that 22.4 l of oxygen at stp have 1 mole
So how much 0.5 l of oxygen have moles
=0.5/22.4 moles
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