advertisement

Name: Date: Gas Laws 1. A cylinder of argon gas contains 50.0 L of Ar at 18.4 atm and 127 °C. How many moles of argon are in the cylinder? 2. A 283.3-g sample of X2(g) has a volume of 30 L at 3.2 atm and 27 °C. What is element X? 3. An ideal gas sample is confined to 3.0 L and kept at 27 °C. If the temperature is raised to 77 °C and the initial pressure was 1500 mmHg, what is the final pressure? 4. A sample of helium was compressed at 35 °C from a volume of 0.5 L to 0.25 L where the pressure is 500 mmHg. What was the original pressure? 5. A hot air balloonist puts 125,000 Liters of air into their balloon at 27 °C and atmospheric pressure. When they heat the air to 200 °C at constant pressure, what is the final volume of the air in the balloon? 6. Air is basically a 80-20 mix of nitrogen and oxygen. A 2 mol sample of air is found to occupy 6.0 L at 27 °C. What is the partial pressure of oxygen in the sample? About Chemistry http://chemistry.about.com