Calculating Pressure w/ Nitrogen Molecules: Where to Start?

[cuddlylover]

If 61022 nitrogen molecules with an rms speed of 450m=s occupy a volume of 2103 cm3, what
is the pressure? Nitrogen molecules have a mass of 28 amu.


I have been giving this but have no idea where to start. Can somebody point me to a starting point so i can have a go at it.

 

[dikmikkel]

Ideal gas law i would guess

 

[truesearch]

Have you met any of the equations from the kinetic theory of gases?
There are a couple that relate pressure of a gas to molecular speed etc.