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If you have ever hiked or climbed to high altitudes in the mountains, you surely have...

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Physics

If you have ever hiked or climbed to high altitudes in themountains, you surely have noticed how short of breath you get.This occurs because the air is thinner, so each breath containsfewer O2 molecules than at sea level. At the top of Mt. Everest,the pressure is only 13atm. Air contains 21.0 % O2 and 78.0 % N2,and an average human breath is 0.480 L of air.

Part A) At the top of Mt. Everest, how many O2 molecules doeseach breath contain when the temperature is -10.0 ∘F?

Express your answer as number of molecules.

Part B) What percent is this of the number of O2 molecules youwould get from a breath at sea level at -10.0 ∘F?

Express your answer as a percentage.

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