Name: Quiz Section:
ID Number: Lab Partner:
Chem 162 Experiment #3: Intermolecular Forces
Part II: Vapor Pressure and Enthalpy of Vaporization
Part I: 26 points (report worksheet completed and handed in before leaving lab)
Part II: 24 points (take-home report)
Lab notebook pages: 10 pts Note: All sections of this
Total: 60 pts report, except the structural
formulas, must be typed.
By signing below, you certify that you have not falsified data, that you have not plagiarized any part of this lab report, and that
all calculations and responses other than the reporting of raw data are your own independent work. Failure to sign this
declaration will result in 5 points being deducted from your report score.
Signature:
PURPOSE (4 pts)
The purpose is to measure the enthalpies of vaporazation of pentane, diethyl ether, butanone, and 2-butanol.
For each of these molecules, a portion of the enthalpy of vaporization is due to dispersion forces (all molecules have
dispersion forces) and the other to a polar component. In the boxes provided below, draw the structural formula for
each molecule (should be drawn by hand or using a drawing tool - not copy/pasted from a website).
Draw the structural formula for pentane: Draw the structural formula for diethyl ether:
Draw the structural formula for butanone: Draw the structural formula for 2-butanol:
Page 1 of 7
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ID Number: Lab Partner:
Chem 162 Experiment #3: Intermolecular Forces
Part II: Vapor Pressure and Enthalpy of Vaporization
Part I: 26 points (report worksheet completed and handed in before leaving lab)
Part II: 24 points (take-home report)
Lab notebook pages: 10 pts Note: All sections of this
Total: 60 pts report, except the structural
formulas, must be typed.
By signing below, you certify that you have not falsified data, that you have not plagiarized any part of this lab report, and that
all calculations and responses other than the reporting of raw data are your own independent work. Failure to sign this
declaration will result in 5 points being deducted from your report score.
Signature:
PURPOSE (4 pts)
The purpose is to measure the enthalpies of vaporazation of pentane, diethyl ether, butanone, and 2-butanol.
For each of these molecules, a portion of the enthalpy of vaporization is due to dispersion forces (all molecules have
dispersion forces) and the other to a polar component. In the boxes provided below, draw the structural formula for
each molecule (should be drawn by hand or using a drawing tool - not copy/pasted from a website).
Draw the structural formula for pentane: Draw the structural formula for diethyl ether:
Draw the structural formula for butanone: Draw the structural formula for 2-butanol:
Page 1 of 7
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