1. Gases Makeup Bellwork Pick which days of bellwork you would like to complete REMEMBER: each day is worth 20 points so 5 days is worth 100 points

2. 1)What would be the new volume the air in your car tire be if you inflated it to 35 L on a very hot day at 343 K, and you observed it again at 275 K? 2)A balloon with a volume of 1500 mL located at sea level (1.0 atm) is took up with your to Lake Tahoe and now has a volume of 2900mL, what is the air pressure in Lake Tahoe? Bellwork

3. 1) The average daytime temperature on the planet Venus is 723 K. What is this temperature in Celsius? 2) Standard temperature and pressure (STP) are defined as _____ Celsius or ______K and _____atm 3) The volume of 1.0 L of chlorine gas at 0.5 atm is decreased to a volume of 0.4 L at a constant temperature. What is the new gas pressure in atm?? Bellwork

4. 1) At standard temperature and pressure, what volume does 22.0 g of CO 2 occupy? ? 2) Assuming ideal behavior, how much pressure will 2.75 mol hydrogen gas exert on the walls of a 4.00 L container at 35.0ºC? Bellwork

5. 1) A 2.50 mol sample of nitrogen gas has a volume of 5.50 L at a temperature of 27°C. Calculate the pressure of the nitrogen gas. 2) A 160. g sample of oxygen gas has a pressure of 1.25 atm at 22°C. What volume does the gas occupy? Bellwork

6. 1. At STP, what volume does 17.0 g of NH 3 occupy? 2. How many moles of steam are produced at 2.00 atm and 202.0°C by the complete combustion of 12.50 L of methane gas? Bellwork

7. 1. At standard temperature and pressure, what volume does 17.0 g of NH 3 occupy? 2. Water freezes at _____ °C and _____ Kelvin 1.All molecular motion stops at _____°C and _____K 2.STP is defined as _____k and ____atm Bellwork

8. 1)A 5.0 gram sample of helium is added to a 5 gram sample of neon gas in a 2.5 liter container at 27 degrees Celsius. Calculate the partial pressure of each gas and total pressure of the mixture. 2)water will decompose into hydrogen and oxygen gas H 2 O  H 2 + O 2 If 25.0 g of water is decomposed, what volume of oxygen gas is produced at STP? Bellwork