Assume all temperatures to be exact, and neglect significant figures for small c

Question

Assume all temperatures to be exact, and neglect significant figures for small changes in dimension.
An athlete has a large lung capacity, 5.6L .

Part A

Assuming air to be an ideal gas, how many molecules of air are in the athlete's lungs when the air temperature in the lungs is 37 ?C under normal atmospheric pressure?

Express your answer using two significant figures.

Assume all temperatures to be exact, and neglect significant figures for small changes in dimension.
An athlete has a large lung capacity, 5.6L .

Part A

Assuming air to be an ideal gas, how many molecules of air are in the athlete's lungs when the air temperature in the lungs is 37 ?C under normal atmospheric pressure?

Express your answer using two significant figures.

Explanation / Answer

v= 5.6 L

p=1 atm

T=273 + 37 = 310 K

R= 0.08206 Latmmol?1K?1

pv=nRT

n=pv/(RT) = 0.22 moles

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