The Partial Pressure of Helium in a Gaseous Mixture of Helium

question 19

Multiple Choice

The partial pressure of helium in a gaseous mixture of helium and nitrogen trifluoride is

• A) the pressure that the helium would exert in the absence of the nitrogen trifluoride
• B) the percentage of the total pressure of the mixture that is contributed by helium
• C) equal to the total pressure divided by helium's molar mass
• D) equal to the total pressure divided by the number of helium atoms present

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