Acertain volatile substance evaporates from an open container into a room of volume 1000 ft'. the evaporation rate is determined to be 200 mg/min. if the air in the room is assumed to be well mixed, how many ft/min of fresh air must be supplied to ensure that the concentration of the volatile is maintained below its tlv of 100 ppm? the temperature is 77°f and the pressure is 1 atm. assume a volatile species molecular weight of 100. under most circumstances the air in the room cannot be assumed to be well mixed. how would poor mixing affect the quantity of air required?

explanation:

i did this but i forgot how to do it

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

58750.08068 is the answer i think

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error