A Normal Breath Takes in About 1

question 56

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 * 10²²
• B) 2.2 * 10²²
• C) 5.8 *10²³
• D) 1.7 * 10²⁵
• E) 1.8 * 10²⁵

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Definitions:

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