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constants
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1. A 5.0 L flask contains 0.50 grams of Fl2 at 27oC. What is the pressure in the flask?
1 atm 0.0058 atm 0.065 atm 2.46 atm 4.0 atm

2. What is the root mean square velocity of methane (CH4) at 273oK?
1 m/s 1304 m/s 310 m/s 652 m/s 16 m/s

3. Which gas is the most abundant in the Earth's atmosphere?
N2 O2 He H2 CO2

4. A balloon occupies a volume of 1.0 liter when it contains 0.08 grams of hydrogen gas at STP. If hydrogen gas is added to the balloon while pressure and temp are kept constant, what will be the new volume?
0.50 L 1.0 L 2.0 L 4.0 L 5.0 L

5. At constant temperature, pressure, and volume, which molecule has the highest average velocity?
H2 F2 He Br2 All of the above

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