Unformatted text preview: also, we had to measure the mass quickly so u can get accurate reading. So finding a perfect time was difficult. We found density and the molar mass by using the equations: MVP=mrT and the density with D = PM/RT We know that liquid will evaporate completely to a gas and the gas will take up the space of the flask. Using water-displacement, we found the mass of the flask with graduated cylinders. We found the mass of the gas by subtracting the flask with the substance, foil and rubber band, from the mass of the flask without the substance but with the rubber band and foil....
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- Spring '06
- flask, AKSHAY PATEL, Vapor Density Lab