b. For the Following Molecule draw bath possible Clain conformations and explain which one is more stable and for what Keason. == H, CH₂ CH₂ "H H

10) Select the MOST STABLE conformation for following molecule: (H3C)3C CH3 CH3 + A ta C B D

what is the most stable conformation of (1R, 2S, 5R)-1,2,5-trimethylcyclohexane

(5) Draw the most stable chair conformation of the cyclohexane shown below. CH3 CI H3C Br OH CH3

In each case below, identify the higest and lowest energy conformations. In cases where two or three conformations are degenerate, choose only one as your anwser. Use Me, H, and Et when drawing the structures.

1E.) Which of the following two conformers is lower in energy? Both conformers are of equal enery O A Conformer A is lower in energy. B Conformer B is lower in energy. It cannot be determined

Give typed explanation only

Consider 1-bromopropane, CH3CH2CH2Br. (a) Which of these is the lowest energy conformation?

Which chair represents the most stable conformation of Molecule A? A B b D d E e Molecule A Me ..Me 'Me Ме Chair conformations Me a) Me b) c) Me Me Me Me Me Me- -Me Me Ме Me d) Ме e) Ме Me Me- Ме Me Me Me

For the cyclohexane molecules a and b draw the most stable chair form