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 hexane (C6H14, density = 0.660 g/mL) completely, yielding carbon dioxide and water?
A) 187 L
B) 712 L
C) 894 L
D) 1780 L
E) 8490 L
Correct Answer:

Verified
Correct Answer:
Verified
Q1: A sample of helium gas occupies 355mL
Q2: When active metals such as magnesium are
Q4: What volume of O<sub>2</sub>(g)at 810.mmHg pressure
Q6: How many atoms of He gas are
Q8: Calculate the molar mass of a gaseous
Q9: What is standard temperature and standard pressure
Q11: A gas evolved during the fermentation of
Q39: Which of the following describes Dalton's Law<br>A)
Q74: Which of these properties is/are characteristic(s) of
Q90: Calculate the volume occupied by 56.5 g