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The Mole Fraction of Oxygen Molecules in Dry Air Is

Question 105

Multiple Choice

The mole fraction of oxygen molecules in dry air is 0.2095. What volume of dry air at 1.00 atm and 25°C is required for burning 1.00 L of octane (C8H18, density = 0.7025 g/mL) completely, yielding carbon dioxide and water?


A) 718 L
B) 367 L
C) 8980 L
D) 1880 L
E) 150 L

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