Ideal Gas Law
Practice Using Different Gas Law Constants
Name___________________________________Period___Date_____________
More Ideal Gas Law Problems (using
different values of R)
PV =
nRT P
= pressure, atm, kPa, mm Hg
V = volume, L
N = number of moles
R = 0.0821 L●atm 8.31 L●kPa 62.4 L●mm Hg
mol●K mol●K mol●K
T = temperature, K
On your
formula chart, 3 different values of R are given. Notice that these values of R have different
units for pressure. Solve the problems
below using the appropriate value of R for the given units of pressure.
1. Determine the number of moles of gas
that occupy 60.0 L at 5.00 atm and 30.0 oC.
2. At what temperature would 10.0 moles
of gas occupy a volume of 5.00 L at a pressure of 700.0 mm Hg?
3. Calculate the volume of 20.0 moles
of carbon dioxide at 25.0 oC and 99.0 kPa.
4. Calculate the number of moles of CH4
in 212.8 liters at STP.
5. Calculate the volume of 72.0 g of SO2
at 35.0 oC and 15.0 kPa.
6. At what temperature would 0.582
moles of a gas occupy a volume of 50.0 L at 985.0 mm Hg?
7. What volume will 1.27 moles of
helium gas occupy at STP?
8. At what pressure (in kpa) would 25.6
grams of magnesium chloride at 150 K occupy 10.5 Liters?
9. At what temperature will 0.896 moles
of neon gas occupy 150 mL at 1.95 atmospheres?
10. How many moles of gas would be present in a
gas trapped within a
100.00 mL vessel at
25.5°C at a pressure of 2.30 atm?
11.
What volume will 20.0 g of Argon occupy at STP (assume mmHg).
