If 360 g of mercury evaporates into a closed room 15 ft. x 10 ft. x 12 ft., how many parts per million of mercury vapor (MW=200) is Inside the room? [Mg/M3 x 24.45ppm x MWI. (ppm = (Mg/M3 x 24.45)/MW 1M3 - 35.315 ft.3: 1000 pg - 1 mg a) 0.000863ppm
b) 0.0683ppm
c) 0.000000863ppm
d) 0.0863ppm