Physics Help Please?

a) Find the number of moles in 3.74 m3 of an ideal gas at 20.0°C and atmospheric pressure.
b) For air, Avogadro's number of molecules has mass 28.9 g. Calculate the mass of 3.74 m3 of air.
c) State how this result compares with the tabulated density of air at 20.0°C.
1 answer 1