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# 9.2 L - PowerPoint PPT Presentation

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

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°).

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

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?

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.

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.

Which gas below would effuse at the fastest rate:

• A. Hydrogen
• B. Argon
• C. Helium
• D. Carbon monoxide

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?

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?

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?

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.