Concept explainers
Calculate the mass (in kg) of nitrogen, oxygen, and carbon dioxide gases in the atmosphere. Assume that the total mass of air in the atmosphere is
Interpretation:
The masses of nitrogen, oxygenand carbon dioxide gases in the atmosphere are to becalculated.
Concept introduction:
Nitrogen is a colorless and odorless gas. Itis found in the Earth’s atmosphere as a diatomic gas with thechemical formula
Oxygen is a chemical element found in solid, liquid andgaseous forms. In the Earth’s atmosphere, it is found as adiatomic gas with thechemical formula
Carbon dioxide is an odorless and colorless gas with thechemical formula
Answer to Problem 8QP
Solution: The mass of nitrogen
Explanation of Solution
Given information: The total mass of the air in the atmosphere is
The total moles of gases areexpressed as follows:
Substitute the values in the above expression and solve as follows:
Therefore, the total moles of gases
Nitrogen is a colorless and odorless gas. It is found in the Earth’s atmosphere as a diatomic gas.
The mass of nitrogen is expressed as follows:
Substitute the values of the molar mass, the composition of air by volume and the total moles of the gases.
Therefore, the mass of nitrogen
Oxygen is a chemical element found in solid, liquid or gaseous forms. In theEarth’s atmosphere, it is found as a diatomic gas with the chemical formula
The mass of oxygen is expressed as follows:
Substitute the values of the molar mass, the composition of air by volume and the total moles of the gases.
Therefore, the mass of oxygen
Carbon dioxide is an odorless and colorless gas with the chemical formula
The mass of carbon dioxide is expressed as follows:
Substitute the values of the molar mass, the composition of air by volume, and the total moles of the gases,
Therefore, the mass of carbon dioxide
The masses of nitrogen, oxygen, and carbon dioxide gases in the atmosphere are
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