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Question number one contains part A, B, and C. Please do the entire question because I posted the question earlier and someone only answered part C whenever question one contains 3 parts. THANK YOU!!

1. Concentration unit: a. Covert 20 cm CO in 1 m' of air to ppm. (5 points) b. Convert the 1-hr NAAQS standard for NO2 to ug/m. (15 points) C. 0.5 g/min of liquid toluene is volatilized into the air stream at 15 feet/min through a 20- inch diameter conduit. What is the concentration of toluene in ppm? P= 1 atm and T = 25 C. (15 points)