A gas occupies 2.2L at 425
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A gas occupies 2.2L at 425 kPa . Determine its volume at standard pressure. The temperature does not change. 9.2 L.

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9.2 L

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A gas occupies 2.2L at 425 kPa. Determine its volume at standard pressure. The temperature does not change.


9.2 L


At room temperature (21°C), the pressure of carbon dioxide in an unopened soda can is 207kPa. Find the pressure of the carbon dioxide in the soda can if left in the trunk of a car on a hot summer day (72°).


242 kPa


  • A gas occupies 15.7L at 28°C and 658mmHg. At what temperature will it expand to 20.5L at a pressure of 595mmHg?


355K


  • Find the volume occupied by 12.2g of argon gas at 23°C and 115kPa.


6.54L


  • At what temperature will 5.0g of chlorine fill a 950mL flask at 125kPa?


202K


  • What mass of hydrogen gas was collected in a eudiometer if the volume was 35.2mL, the temperature was 23°C and the pressure of the dry hydrogen was 94.2kPa?


0.00270g


A student blows up a balloon to a volume of 23.1L at 21.4°C. He then places the balloon in an ice water bath, where the temperature is 2.5°C.

Find the new volume of the balloon.


21.6L


  • A gas occupies 14.5L at 28°C and 450mmHg. Determine its volume at STP.


7.8L


  • A student collects hydrogen over water at 23°C. The pressure in the room is 99.2kPa. The water vapor pressure at 23°C is 2.8kPa. Find the pressure of the dry hydrogen gas.


96.4 kPa


  • Which gas below would effuse at the fastest rate:

    • A. Hydrogen

    • B. Argon

    • C. Helium

    • D. Carbon monoxide


  • A. hydrogen


  • A sample of hydrogen and a sample of helium are both in 2.0L tanks at 24°C and 795mmHg.

  • Which tank has more molecules?


  • They have the same number of molecules!


  • A sample of hydrogen and a sample of helium are both in 2.0L tanks at 24°C and 795mmHg.

  • Which tank has is heavier?


helium


  • A sample of hydrogen and a sample of helium are both in 2.0L tanks at 24°C and 795mmHg.

  • Which gas has the higher average kinetic energy?


  • They have the same average kinetic energy


  • Find the density of nitrogen dioxide at STP.


2.05 g/L


  • Find the density of nitrogen dioxide at 25°C and 96kPa.


1.8 g/L


  • Find the molar mass of a gas if 12.2g of a gas occupies 2.44L at 94kPa and 24°C.

    The gas is a monoatomic element. Identify the gas.


131.3 g/mol

Xe


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