
Concept explainers
The mass of oxygen gas in the atmosphere.

Answer to Problem 7P
The mass of oxygen gas in the atmosphere is
Explanation of Solution
Given that the total mass of Earth’s atmosphere is
Let
Write the expression for finding the molecular mass of
Since the percentage abundance of
Thus, the total mass of the atmosphere can e expressed as,
Solve equation (II) for
The total mass of
Use equation (III) in (IV).
Conclusion:
Substitute
Therefore, the mass of oxygen gas in the atmosphere is
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Chapter 6 Solutions
Loose Leaf For Explorations: Introduction To Astronomy
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