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The volume of gases in 100 cm3 of air depends on the composition of the air. Typically, air is approximately 78% nitrogen, 21% oxygen, and 1% other gases. Each gas will occupy a volume proportional to its mole fraction. Given the molecular weights of nitrogen (28 g/mol) and oxygen (32 g/mol), you can calculate the volumes using the ideal gas law.

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1y ago

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