determination of the molar mass of volatile liquids

determination of the molar mass of volatile liquids - Chae...

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Chae Bang Determination of the Molar Mass of Volatile Liquids Due 12/13/12 Data Table Temperature of boiling water bath 100.5 °C Barometric pressure 1.0129 mm Hg Temperature of room temp. water bath 26.4 °C Density of water at room temperature 0..9973g/mL Finding the volume of pipet #1 #2 #3 Mass of pipet 1.840g 1.808g 1.853g Mass of pipet and water 16.384g 16.394g 16.383g Mass of water in filled pipet 14.544g 14.586g 14.530g Volume of pipet .014507L 0.014547L 0.14491L Volatile Liquids Trial 1 Trial 2 Trial 3 Ethyl Alcohol Mass of pipet and condensed ethyl alcohol 1.876g 1.843g 1.889g Mass of condensed ethyl alcohol 0.036g 0.035g 0.036g Molar Mass of ethyl alcohol 74.91g/mol 72.62g/mol 74.98g/mol Acetone Mass of pipet and condensed acetone 1.870g 1.842g 1.884g Mass of condensed acetone 0.03g 0.031g 0.031g Molar mass of acetone 62.43g/mol 64.32g/mol 64.57g Post-Lab Calculations and Analysis 5. Volatile liquids with lower boiling points often give better results than those with higher boling points because for the liquids with higher boiling might evaporate before it boils because of its volatility. For the one with higher boiling point it would take longer to boil than the one
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  • Fall '12
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