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
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
