1. Living by Chemistry Unit 3 Review

2. 1) How many moles of gas are in a 30
1) How many moles of gas are in a 30. L scuba canister if the temperature of the canister is 300. K and the pressure is 200. atm?
240 mol

3. 2) A gas balloon has a volume of 106
2) A gas balloon has a volume of liters when the temperature is 45.0 °C and the pressure is 0.97 atm. What will its volume be at 20.0 °C and 1.03 atm pressure?
92.7 L

4. 3) How many molecules are in 0.85 moles of NH3?
5.12 x 1023 molecules

5. 4) Convert 35°C to Fahrenheit

6. 5) Convert 75°F to Celsius
23.9°C

7. 6) How many moles of gas does it take to occupy 120
6) How many moles of gas does it take to occupy 120. liters at a pressure of 2.30 atm and a temperature of 340. K?
9.89 mol

8. 7) The density of solid CO2 is 1
7) The density of solid CO2 is 1.56 g/mL and the density of gaseous CO2 is g/mL. What it the volume of gas produced when 15 mL of solid CO2 sublimes?
12,300 mL or 12.3 L

9. 8) What is the mass of 2.25 moles of C3H8?
99.25 g

10. 9) What is the mass of 1.64 x 1024 molecules of CO2?g

11. 10) A container containing 5
10) A container containing 5.00 L of a gas is collected at 100 K and then allowed to expand to 20.0 L. What must the new temperature be in order to maintain the same pressure
400 K