The measurements of a classroom are approximately 52 feet long by 29 feet wide by 12 feet in height. The instructions for precipitating the hydrogen sulfide group call for hydrolyzing 6 drops of 1% thioacetamide (1% is 1g/100mL), which produces H2S. Much of this H2S is used to precipitate the group, but some escapes the room. Let's suppose that all 24 students in the room simultaneously did this and 100% of the H2S escaped into the room. Assuming the temperature in the room is 24 degrees Celsius, the barometric pressure is 735 torr, and that no H2S leaves the room, what would be the concentration of the H2S in the lab in ppm? Concentration above this value require monitoring and control.
Note: ppm stand for parts per million and is equivalent to 1 mole of solute per million moles of solvent. Use 20 drops = 1 mL as an exact conversion.
Good luck. Nobody has been able to figure this one out yet!
Note: ppm stand for parts per million and is equivalent to 1 mole of solute per million moles of solvent. Use 20 drops = 1 mL as an exact conversion.
Good luck. Nobody has been able to figure this one out yet!