**Ideal gas equation and moles questions **

1) If I have 40
moles of a gas at a pressure of 56000 Pa and a volume of 2 m^{3}, what
is the temperature?

2) If I have an
unknown quantity of gas at a pressure of 120000 Pa, a volume of 31 dm^{3},
and a temperature of 360 k, how many moles of gas do I have?

3) If I contain
3 moles of gas in a container with a volume of 60 dm^{3} and at a
temperature of 400 K, what is the pressure inside the container?

4) If
I have 7.7 moles of gas at a pressure of 9 kPa and at
a temperature of 56 ^{0}C, what is the volume of the container that the
gas is in?

5) An
unknown gas weighs 34g and occupies 6.7 dm^{3} at 200 kPa and 245K. What is its relative molecular mass?

6) What
is the volume of 23g of Argon gas at 1 ^{o}C
and a pressure of 200 kPa?

7) Calculate
the mass of a sample of carbon dioxide which occupies 20 dm^{3} at 27 ^{o}C and 100 kPa.

8) Calculate
the relative molecular mass of a gas if a 500 cm^{3} sample at 20 ^{o}C and 100 kPa has a
mass of 0.66 g.