anonymous
  • anonymous
A mixture of He and Ne at a total pressure of 0.95 atm is found to contain 0.32 mol of He and 0.56 mol of Ne. The partial pressure of Ne is ___ atm
Chemistry
schrodinger
  • schrodinger
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Rushwr
  • Rushwr
\[P _{total} = P _{He} + P _{Ne}\] Partial pressure of a gas = molar fraction x total pressure
anonymous
  • anonymous
How do i find the molar fraction?
Rushwr
  • Rushwr
Molar fraction = no. of moles of one component divided by the total no. of moles of all the compounds in the mixture

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Rushwr
  • Rushwr
The molar fraction of Ne would be \[\frac{ 0.56mol }{ (0.56 + 0.32)mol }\]
anonymous
  • anonymous
Awesome! so then i take that times 0.95?
Rushwr
  • Rushwr
yep

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