1. Gases Review

2. A sample of 150. 0mL of oxygen has a pressure of 2. 52 atm
A sample of 150.0mL of oxygen has a pressure of 2.52 atm. If the pressure is changed to 7.2 atm, what is the new volume of the gas?

3. An air sample has a volume of 240. 0mL at 57. 0C
An air sample has a volume of 240.0mL at 57.0C. If volume is reduced to 40.0mL at constant pressure, what is the temperature?

4. At 201. 0°C, the pressure of a sample of nitrogen is 1. 57atm
At 201.0°C, the pressure of a sample of nitrogen is 1.57atm. What will pressure be at 275.0°C, volume is constant?

5. 350mL gas sample at 35.0C and 1.7atm pressure is compresses to a volume of 35mL, and the pressure is increased to 3.1 atm. What is the new temperature of the gas?

6. How many liters are occupied by 0.709mol of nitrogen at 115.0°C and 0.701atm pressure?

7. What is mass, in grams, of oxygen gas in a 22. 5L container at 95
What is mass, in grams, of oxygen gas in a 22.5L container at 95.0°C and 3.22atm?

8. A metal tank contains three gases: oxygen, helium, and nitrogen
A metal tank contains three gases: oxygen, helium, and nitrogen. If the partial pressures of the three gases in the tank are 3.5 atm of O2, 0.5 atm of N2, and 2.5 atm of He, what is the total pressure inside of the tank?

9. 3F2(g)+3H2O(l)→6HF(g)+O3(g) What volume of O3 gas would be produced by the complete reaction of 2.60x104mL of fluorine gas? All gases are measured under the same conditions.

10. What volume of oxygen, collected at 15°C and 121kPa, can be prepared by decomposition of 34.9 g of potassium chlorate? 2KClO3(s)2KCl(s)+3O2(g)