Chloroform (CHCl3) is the liquid that usually saturates the handkerchief that is

Question

Chloroform (CHCl3) is the liquid that usually saturates the handkerchief that is pressed over the nose of an unsuspecting victim in TV spy stories. Chloroform has a vapor pressure of 199 mm at 25.0?C. If half a pint of chloroform (density= 1.489g/mL) is spilled on the floor of a room that is 12 ft by 13 ft by 8.0 ft, will all the chloroform vaporize? (Prove your answer by calculation.)

Explanation / Answer

volume of the room = 12*13*8 ft^3 = 1248 ft^3=35.34 m^3 half pint = 236.588 milliliters => weight of chloroform present = 236.588*1.489 = 352.28 g So, moles of chloform present = 352.28/119.5 = 2.95 moles Given vapour pressure = (199/760)*(1.01325*10^5) Pascal at 298 kelvin temperature So, moles = (199/760)*(1.01325*10^5)*(35.34)/[(8.314)*298] => moles = 378.44 moles Hence, all the chloroform present will be converted to vapour state.

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