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A Normal Breath Takes in About 1

Question 9

Multiple Choice

A normal breath takes in about 1.0 L of air. Assuming that air has an average molar mass of 28.8 g, and that its density is 0.97 g/L, how many molecules of air do you take in with each breath?


A) 2.0 × 10 22
B) 2.2 × 10 22
C) 5.8 × 10 23
D) 1.7 × 10 25
E) 1.8 × 10 25

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