Circle the most stable molecule in each of the following pairs. a) CH, b) CH, CH, CH, CH, CH c) ÇỊCH)a C(CH) for b and c why are those the correct answers?
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Q: Label each C–C double bond as E or Z.
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Q: 2. Draw curved arrows that show the bond changes for each chemical step shown below. CH3 H3C X-X-…
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- Consider the Newman projection below. a. Draw a full Lewis structure of this molecule with R1=Me,R2=Et , and R3=iPr . b. Given the sizes of these R groups (R3R2R1) , does the Newman projection above show thelowest potential energy conformation of this bond? If not, draw a Newman projectionshowing the lowest P.E. conformation (sighting down this same bond). c. To draw a Newman projection in the lowest P.E. conformation, the following rule of thumbusually applies: Place the largest group on the front carbon anti to the largest group on theback carbon. Is your answer to the previous question consistent with this rule of thumb?Consider the molecule 1-bromo-2-methylbutane. C3 and C4 should be drawn as Et as in theexample. This group is called an ethyl group and can be considered a sphere about twice the sizeof a methyl group. Draw the following Newman projections sighting down the C1C2 bond... a. The lowest potential energy conformation. b. The highest potential energy staggered conformation.Draw the potential energy of the molecule circled at the top. Draw the other 3 Newman projections based on the one already drawn by rotating the back carbon clockwise. Explain your answers
- a. Draw the Newman projection for each molecule shown here, looking down the c-c bond indicated by the arrow. b. Which configuration do you think is more stable? Explain.Rank the following Newman projections in order of increasing energy, from most stable to least stable.(a) Draw in the curved arrows to show how A is converted to B in Step -1-. (b) Identify X, using the curved arrows drawn for Step -2-.
- Explain why alkene A is more stable than alkene B, even though B contains more carbon atoms bonded to the double bond. Would you expect C to be more or less stable than A and B?Then draw the most stable and least stable Newman projection conformation from the C4-C5 bond in the molecule aboveConvert each three-dimensional model to a Newman projection around the indicated bond.