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- 1. Multiple ChoiceIf the pressure exerted by a gas at 25 ⁰C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?.002766 mole.0069 mol2.766 mol9.887 mol
- 2. Multiple ChoiceDetermine the Celsius temperature of 2.49 moles of gas contained in a 1.00-L vessel at a pressure of 143 kPa.-266 degrees C-622 degrees C622 degrees C266 degrees C
- 3. Multiple Choice
Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.7.18 L7.81 L4.63 L4.36 L - 4. Multiple ChoiceDetermine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure.0 K107 K207 K307 K
- 5. Multiple ChoiceHow many moles of gas are contained in 890.0 mL at 21.0 °C and 750.0 mm Hg pressure?.0364.00474.5096.0684
- 6. Multiple ChoiceAt standard temperature and pressure (0 ⁰C, 760 torr), what volume would 4g of helium gas occupy?33.6 L22.4 L44.8 L11.2 L
- 7. Multiple ChoiceIf the pressure exerted by a sample of carbon tetrachloride gas at 25 ⁰C in a volume of 45 mL is 3.80 atm, how many grams of gas are present? (hint: start by calculating the number of moles present)0.33 g1.06 g0.67 g1.60 g
- 8. Multiple Choice1.09 g of H2 is contained in a 2.00 L container at 20.0 °C. What is the pressure in this container in atm?14.29 atm.443 atm6.56 atm3.28 atm
- 9. Multiple ChoiceWhat is the pressure in atmospheres of a 0.108-mol sample of helium gas at a temperature of 200.0 ⁰C if its volume is 0.505 L?8.30 atm2.42 atm29.3 atm5.14 atm
- 10. Multiple ChoiceHow many of these pressure values are standard pressure?
700 torr
0.5 atm
101 PaZeroOneTwoThree - 11. Multiple ChoiceHow many of these temperature values are standard temperature?
273 K
0 ⁰CZeroOneTwoDepends on pressure - 12. Multiple ChoiceThe volume of 3.5 moles of gas at -73 ⁰C and 303.9 kPa is ___19.2 L22.4 L20.4 L17.9 L
- 13. Multiple Choice
The temperature of 66 grams of carbon dioxide gas if takes up 2,000 mL of volume and has a pressure of 22,800 torr is ___.
500 K
273 K
487 K
0.00205 K
- 14. Multiple ChoiceWhat is the volume of a 0.67 mole sample of xenon gas (Xe) with a temperature of 37 oC and has a pressure of 740 mm Hg?20.5 L17.5 L131.9 L44.8 L
- 15. Multiple ChoiceHow many grams of oxygen gas must be placed in a 3.00 liter container in order to exert a pressure of 202.6 kPa at 25 °C?7.85 g3.92 g2.45 g12.33 g
- 16. Multiple ChoiceAn 18 liter container holds 33.91 grams of boron trifluoride gas (BF3) at 45 °C. What is the pressure in the container?23.2 atm0.725 atm0.725 mmHg23.3 mmHg
- 17. Multiple ChoiceHow many liters of gas are there in 44 g of bromine gas at STP?3.50 L3.08 L12.34 L6.16 L
- 18. Multiple ChoiceA sample of nitrogen gas has a volume of 6.0 L at a pressure of 1.13 atm and a temperature of 282 K. What is the density (units: grams/Liter) of the gas sample at these conditions?
(The density of a gas is determined by dividing its mass by the volume it occupies.)8.20 g4.10 g16.20 g12.50 g - 19. Multiple Choice2C6H2(NO2)3CH3(s) →
12CO(g) + 5H2(g) + 3N2(g) + 2C(s)
2 moles of TNT react at STP as shown above.
What is the total volume of gas produced in the reaction? (Hint: figure out moles of each gas produced then add them up)240 L480 L288 L408 L - 20. Multiple ChoiceWhich sample of gas would occupy the greatest volume?
Sample A: 12.0 grams of hydrogen gas at 966 torr and 313 K
Sample B: 250 grams of sulfur hexafluoride at 55.9 kPa and 50 ⁰C
Sample C: 938 grams of carbon tetrachloride at 3000 mm Hg and 278 K
Sample D: 1.75 moles of oxygen gas at STPSample ASample BSample CSample D - Answer choicesTagsAnswer choicesTags