Answer:
.0466 L
Explanation:
To start off, use dimensional analysis to convert everything to standard PV=nRT units.
[tex]\frac{39.0}{1}[/tex] x [tex]\frac{1}{1000}[/tex] = .039 L
[tex]\frac{802}{1}[/tex] x [tex]\frac{1}{760}[/tex] = 1.055 atm
17 +273 = 290
...and so on.
Solve for n for the starting pressure, volume and temp. You'll need it for the final equation.
n= PV/RT [tex]\frac{1.055 *.039}{.0821 * 290}[/tex]= .0017 number of moles
Solve for volume of the end point.
V= nRT/P [tex]\frac{.0017*.0821*280}{.838}[/tex] = .0466 L of helium, or 46.6ml Less pressure means it will take up more space.
