Part A Review | Constants | Periodic Table The various gas laws can be used to describe air, which is a mixture of gases. In some cases, these laws have direct application to the air that we breathe. How long does it take a person at rest to breathe one mole of air if the person breathes 85.0 mL/s of air that is measured at 25 °C and 755 mmHg? Express your answer numerically in seconds. ▸ View Available Hint(s) 1 ΑΣΦ ? Submit Part B Typically, when a person coughs, he or she first inhales about 2.00 L of air at 1.00 atm and 25 °C. The epiglottis and the vocal cords then shut, trapping the air in the lungs, where it is warmed to 37 °C and compressed to a volume of about 1.70 L by the action of the diaphragm and chest muscles. The sudden opening of the epiglottis and vocal cords releases this air explosively. Just prior to this release, what is the approximate pressure of the gas inside the lungs? Express your answer numerically in atmospheres. ▸ View Available Hint(s) ΜΕ ΑΣΦ Submit ? atm Part C Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.518 g/L at 25 °C and 721 mmHg? Express your answer numerically as a percentage. ▸ View Available Hint(s) ΜΕ ΑΣΦ ? Submit Provide Feedback %He Next >
Part A Review | Constants | Periodic Table The various gas laws can be used to describe air, which is a mixture of gases. In some cases, these laws have direct application to the air that we breathe. How long does it take a person at rest to breathe one mole of air if the person breathes 85.0 mL/s of air that is measured at 25 °C and 755 mmHg? Express your answer numerically in seconds. ▸ View Available Hint(s) 1 ΑΣΦ ? Submit Part B Typically, when a person coughs, he or she first inhales about 2.00 L of air at 1.00 atm and 25 °C. The epiglottis and the vocal cords then shut, trapping the air in the lungs, where it is warmed to 37 °C and compressed to a volume of about 1.70 L by the action of the diaphragm and chest muscles. The sudden opening of the epiglottis and vocal cords releases this air explosively. Just prior to this release, what is the approximate pressure of the gas inside the lungs? Express your answer numerically in atmospheres. ▸ View Available Hint(s) ΜΕ ΑΣΦ Submit ? atm Part C Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.518 g/L at 25 °C and 721 mmHg? Express your answer numerically as a percentage. ▸ View Available Hint(s) ΜΕ ΑΣΦ ? Submit Provide Feedback %He Next >
Chapter11: The Air Around Us
Section: Chapter Questions
Problem 10E
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Question
Please correct answer and don't use hand rating and don't use Ai solution
Transcribed Image Text:Part A
Review | Constants | Periodic Table
The various gas laws can be used to describe air, which is a mixture of gases.
In some cases, these laws have direct application to the air that we breathe.
How long does it take a person at rest to breathe one mole of air if the person breathes 85.0 mL/s of air that is measured at 25 °C and 755 mmHg?
Express your answer numerically in seconds.
▸ View Available Hint(s)
1 ΑΣΦ
?
Submit
Part B
Typically, when a person coughs, he or she first inhales about 2.00 L of air at 1.00 atm and 25 °C. The epiglottis and the vocal cords then shut, trapping the air in the lungs, where it is
warmed to 37 °C and compressed to a volume of about 1.70 L by the action of the diaphragm and chest muscles. The sudden opening of the epiglottis and vocal cords releases this air
explosively. Just prior to this release, what is the approximate pressure of the gas inside the lungs?
Express your answer numerically in atmospheres.
▸ View Available Hint(s)
ΜΕ ΑΣΦ
Submit
?
atm
Part C
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen
mixture having a density of 0.518 g/L at 25 °C and 721 mmHg?
Express your answer numerically as a percentage.
▸ View Available Hint(s)
ΜΕ ΑΣΦ
?
Submit
Provide Feedback
%He
Next >
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