A researcher is using a 5-cm diameter Stefan tube to measure the mass diffusivity of Chlor...

A researcher is using a 5-cm diameter Stefan tube to measure the mass diffusivity of Chloroform in air at 25°C and 1 atm. Initially, the liquid Chloroform surface was 7.00 cm from the top of the tube; and after 10 hours have elapsed, the liquid Chloroform surface was 7.44 cm from the top of the tube, which corresponds to 222 g of Chloroform being diffused. At 25°C, the Chloroform vapor pressure is 0.263 atm, and the concentration of chloroformis zero at the top of the tube. If the molarmass ofchloroform is 119.39 kglkmol. determine the mass diffusivity of chloroform in air.