Gas Density Flashcards

1
Q

The oil from a eucalyptus leaves contains the volatile compound eucalyptol. At 190°C and 60.0 torr a sample of eucalyptol vapor had a density of 0.320 g/L. Calculate the molar mass of eucalyptol.

A

You are given the density there, pressure & temperature. You shall use the formula for ideal gas law.

PV = nrt

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2
Q

PV = nrt

  • *P** is for pressure.
  • *V** is for volume.
  • *n** is for mole.
  • *r** is for rate.
  • *t** is for temperature.

What’s next?

A

Convert the formula for density.

Since we know density = mass/volume, formula becomes

D=

PM

RT

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