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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Definitions:

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