The exhaust gas from an automobile contains 0.002% by volume of nitrogen dioxide (MW¼46). What is the concentration of NO2 in mg/m3 at standard temperature and atmosphere pressure (25C and 1 atm pressure)?

The exhaust gas from an automobile contains 0.002% by volume of nitrogen dioxide (MW¼46). What is the concentration of NO2 in mg/m3 at standard temperature and atmosphere pressure (25C and 1 atm pressure)?

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