The sulfur dioxide (so2) stack-gas concentration from fossil-fuel combustion is 12 ppmv. determine the stack-gas so2 concentration in units of µg/m3. assume 0 °c and 1 atm pressure. express answer to nearest unit.

The concentration of in the stack gas = 12 ppmv

That means 12 L of   is present per

The given temperature is 273 K (0 C) and pressure is 1 atm. At these conditions, 1 mol of gas would occupy,

V = 22.4 L

1 mol occupies 22.4 L

Moles of =

Mass of   = =μg

Converting :

=

Calculating the concentration in μg/:

air quality

poor drinking water

and heavy polution

can lead to poor health