How far apart are air molecules? How far would an infinetesimally small laser beam travel to hit one?

just curious, I have no application

I'll give you a start:
Assume air is an ideal gas (actually a mixture of gases).
Assume the air is at STP (standard temperature and pressure).
1.00 mole of the gas would occupy 22.4 Liters. In that volume you would have 6.022 x 10^23 molecules.

Your problem is to calculate the distance between each molecule in the 22.4 L box. Assume each molecule occupies no space (i.e., it is just a point in space).

Have fun.