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1Paige RadcliffStephanie FullamCHEM 2038-009Fall, 2019Gas Laws II- Determination of the Molar Mass of a Volatile LiquidIntroduction:The Gas Laws II law focused on determining molar mass from pressure, volume andtemperature. The experiment’s objectives were to vaporize an unknown volatile liquid anddetermine its mass and use those mass values and the ideal gas equation to determine the molarmass. Important background information to note for this lab is the fact that the number of molesin a sample of gas is directly proportional to its volume given the pressure and temperature areheld constant. It is also important to note the ideal gas equation (𝑃𝑉 = ?𝑅𝑇)can be manipulatedto𝑃𝑉 =??𝑅𝑇and? =?𝑅𝑇𝑃𝑉, where ‘m’ is the mass in grams and ‘M’ is the molar mass.Procedure:The atmospheric pressure in the lab was given at the beginning of the lab to start theexperiment. Then a beaker filled with water was heated on a hot plate until boiling, and when thewater was boiling the temperature was recorded. A small amount of an unknown volatile liquidwas then poured into an Erlenmeyer flask, where the top of the flask had foil covering it with apinhole in the foil. The flask was placed into the boiling water until the liquid in the flaskevaporated. After evaporation the pin was put back into the whole in the foil and the flask wastaken out of the water and cooled down on the lab bench to room temperature.This procedure

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Term
Fall
Professor
MAYZES
Tags
Stephanie Fullam, Paige Radcliff

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