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 m³, what is the temperature?

2) If I have an unknown quantity of gas at a pressure of 120000 Pa, a volume of 31 dm³, 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 dm³ 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 ⁰C, what is the volume of the container that the gas is in?

5) An unknown gas weighs 34g and occupies 6.7 dm³ at 200 kPa and 245K. What is its relative molecular mass?

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

7) Calculate the mass of a sample of carbon dioxide which occupies 20 dm³ at 27 ^oC and 100 kPa.

8) Calculate the relative molecular mass of a gas if a 500 cm³ sample at 20 ^oC and 100 kPa has a mass of 0.66 g.