1 / 22

STP Gas Calculations

STP Gas Calculations. A balloon is filled with 3.78 L of He gas at STP. How many moles of helium atoms are inside?. He. One-step problems:. Solution:. 1 mol. 3.78 L He. = 0.169 mol He. 22.4 L. STP Gas Calculations.

damali
Download Presentation

STP Gas Calculations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. STP Gas Calculations A balloon is filled with 3.78 L of He gas at STP. How many moles of helium atoms are inside? He One-step problems: Solution: 1 mol 3.78 L He = 0.169 mol He 22.4 L

  2. STP Gas Calculations A balloon is filled with 5.99 moles of CH4 gas at STP. What is the volume of the balloon in liters? CH4 One-step problems: Solution: 22.4 L 5.99 mol CH4 = 134 L CH4 1 mol

  3. STP Gas Calculations A balloon is filled with 36.2 liters of Cl2 gas at STP. How many moles of chlorine gas are inside? Cl2 One-step problems: Solution: 1 mol 36.2 L Cl2 = 1.62 mol Cl2 22.4 L

  4. STP Gas Calculations A balloon is filled with 0.333 mol of Xe gas at STP. What is the liter volume of xenon in the balloon? Xe One-step problems: Solution: 22.4 L 0.333 mol Xe = 7.46 L Xe 1 mol

  5. STP Gas Calculations A balloon is filled with argon gas at STP. What is the density of the gas in the balloon? Ar One-step problems: Solution: 39.948 g Ar 1 mol = 1.78 g/L Ar 1 mol 22.4 L

  6. STP Gas Calculations ? A balloon is filled with an unidentified gas at STP. If its density is 2.35 g/L, what is the molar mass of this gas? One-step problems: Solution: 2.35 g gas 22.4 L = 52.6 g/mol 1 L 1 mol

  7. STP Gas Calculations A balloon is filled with acetylene gas at STP. What is the density of the gas in the balloon? C2H2 One-step problems: Solution: 26.038 g C2H2 1 mol = 1.16 g/L C2H2 1 mol 22.4 L

  8. STP Gas Calculations ? A balloon is filled with a diatomic gas at STP. If its density is 0.0900 g/L, what is the molar mass of this gas? One-step problems: What is the identity of this diatomic gas? Solution: Hydrogen H2 0.0900 g gas 22.4 L = 2.02 g/mol 1 L 1 mol

  9. Mass (g) Gas Vol mole He A balloon is filled with 300. liters of helium gas at STP. What is the mass in grams of this gas? STP Gas Calculations Solution: Two-step problems: 1 mol 4.0026 g He 300. L He = 53.6 g He 22.4 L 1 mol

  10. Mass (g) Gas Vol mole N2 A balloon is filled with 122 grams of nitrogen gas at STP. What is the volume in liters of this balloon? STP Gas Calculations Solution: Two-step problems: 1 mol 22.4 L 122 g N2 = 97.6 L N2 28.0134 g N2 1 mol

  11. Mass (g) Gas Vol mole A balloon is filled with 487 liters of hydrogen gas at STP. What is the mass in grams of this gas? STP Gas Calculations H2 Solution: Two-step problems: 1 mol 2.01588 g H2 487 L H2 = 43.8 g H2 22.4 L 1 mol

  12. Mass (g) Gas Vol mole A balloon is filled with 349 grams of neon gas at STP. What is the volume in liters of this balloon? STP Gas Calculations Ne Solution: Two-step problems: 1 mol 22.4 L 349 g Ne = 387 L Ne 20.1797 g Ne 1 mol

  13. Gas Vol Atoms mole Several balloons are filled with 8250 total liters of helium gas at STP. How many total atoms of helium are contained in all of the balloons? STP Gas Calculations Two-step problems: Solution: 1 mol 6.02x1023 atoms 8250 L He = 2.22x1026 atoms 22.4 L 1 mol

  14. Gas Vol Molecules mole A balloon in the shape of Darth Vader’s head is filled with 8.0x1028 molecules of nitrogen gas at STP. What is the volume in liters of this balloon? STP Gas Calculations Solution: Two-step problems: 1 mol 22.4 L 8.0x1028 molec. = 3.0x106 L N2 6.02x1023 molec. 1 mol

  15. Gas Vol Molecules mole A sleeping balloon is filled with 2.75 liters of carbon dioxide gas at STP. How many molecules are contained the balloon? STP Gas Calculations Two-step problems: Solution: 1 mol 6.02x1023molecules 2.75 L CO2 = 7.39x1022 molecules 22.4 L 1 mol

  16. Mass (g) Gas Vol mole A large yellow ducky balloon is filled with 2.5x106 liters of air at STP. What is the mass in grams of the air if the average molar mass is 29 g/mol? STP Gas Calculations Two-step problems: Solution: 1 mol 29 g air 2.5x106 L air = 3.24x106 g air 22.4 L 1 mol

  17. Mass (g) Gas Vol mole The Goodyear Blimp is filled with 5.74x106 liters of He at STP. What is the mass in grams of this much He? STP Gas Calculations Two-step problems: Solution: 1 mol 4.0026 g He 5.74x106 L He = 1.03x106 g He 22.4 L 1 mol

  18. Gas Vol Molecules mole If the balloon at the left were filled with 4.5x1028 molecules of methane gas at STP instead of air, what would be the volume in liters? STP Gas Calculations Solution: Two-step problems: This sort of gives new meaning to the term “air head” doesn’t it? 1 mol 22.4 L 4.5x1028 molec. = 1.7x106 L CH4 6.02x1023 molec. 1 mol

  19. STP Gas Calculations If this flying cow balloon was filled with sulfur dioxide gas at STP instead of hot air, what would it’s density be? One-step problems: Solution: 64.064 g SO2 1 mol = 2.86 g/L SO2 1 mol 22.4 L

  20. STP Gas Calculations If these balloons are filled with gas at STP and their density is 1.85 g/L, what is the molar mass of this gas? One-step problems: Solution: 1.85 g gas 22.4 L = 41.4 g/mol 1 L 1 mol

  21. Gas Vol Molecules mole If this girl inhales all of the helium from this balloon that has a volume of 1.25 liters at STP, how many atoms does she inhale? STP Gas Calculations Two-step problems: Solution: 1 mol 6.02x1023molecules 1.25 L CO2 = 3.36x1022 atoms of He 22.4 L 1 mol

  22. Mass (g) Gas Vol mole If this girl’s balloon is filled with 4.0 liters of CO2 gas at STP and someone popped it with a pin, what mass in grams would be released? STP Gas Calculations Two-step problems: Solution: 1 mol 44.010 g CO2 4.0 L CO2 = 7.86 g CO2 22.4 L 1 mol

More Related