Chomat_Exp12

Chomat_Exp12 - Experiment 12 Evaporation and Intermolecular...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Experiment 12 – Evaporation and Intermolecular Forces Name Michael Chomat Lab Day and Time Monday 1:00 PM TA Na Zhang Section 403 Documentation Lab Manual for Experiment 12 GRADING RUBRIC Possible Points Points Received Introduction 10 Purpose of report Goals of the experiment Materials and Methods 10 Reference lab manual Only describe deviations Results and Discussion 60 Inserted titles for tables Inserted graphs into template Inserted captions for each graph Showed complete sample calculations Summarized all data in tables Answered questions completely Error analysis Laboratory Technique 20 TOTAL (100) TA Comments/Suggestions:
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
C HEMISTRY 102L R EPORT T EMPLATE EXPT. Evaporation and Intermolecular Forces 12 12 Introduction The purpose of this report is to understand how heat of vaporization varies with the strength of intermolecular forces. The objective of the experiment was to relate heat of vaporization to intermolecular forces. Materials and Methods The procedure for this experiment was taken from lab manual for experiment 12 . There were no deviations from the given procedure. Results and Discussion Figure 1 displays the effect o London Dispersion forces (induced dipole – induced dipole) on H vap . The greater the size of the molecule the stronger the forces and the less drastic a change in T. This is why a trend of a more steady temperature decrease is seen from heptane (the smallest alkane tested) to nonane (the largest alkane tested). Figure 2 exemplifies the effect of Hydrogen Bonding on H vap . As compared to the alkanes the alcohols had a less drastic decrease in temperature. However, when compared to themselves it is seen that the largest molecule propanol had the steadiest slope. This is because the
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 11/04/2011 for the course CHEM 102 at UNC.

Page1 / 7

Chomat_Exp12 - Experiment 12 Evaporation and Intermolecular...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online