CHEM 241 Study Guide - Final Guide: Undecane, Chemical Formula, Decane

• School: Drexel University
• Department: Chemistry
• Course: CHEM 241
• Professor: Rutkowsky Susan

Document Summary

Predict the number of isomers that have the molecular formula c6h14 and indicate which isomer will have the highest bpt. Name the following compounds b: 4-ethyl-2,3-dimethylheptane d. 4-ethyl-2,3,5,6-tetramethylheptane. Draw the eclipsed and staggered forms of propane and predict how the energy changes with rotation. Draw the eclipsed and staggered forms of clch2ch2cl, and predict how the energy changes with rotation. One conformer is more stable than the others, predict which one. Draw the line structure of trans-1,3-dimethylcyclohexane and use this to draw two different chair conformations for this molecule. Predict which form will be the most stable. Draw the line structure of cis-1,3-dimethylcyclohexane and use this to draw the chair conformation for this molecule. In one sentence explain why there is only one conformation. The diequatorial conformation is so much more stable that this is essentially the only conformer present. Two samples of 1,3-dimethylcyclohexane are burnt in a calorimeter and found to generate different amounts of energy.