Given that the concentration of an air pollutant is 15 ppmv, while P is 2.5 atm, T is 25C , and assume that the molecular concentration of the air is 24 g/mol. (1 mol ideal gas at 0C and 1 atm occupies a volume of 22.4 L)

(i) What's the volume of 2 mol of the above air pollutant?

(ii) What's the air pollutant concentration in mg/m3?