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12 Nov 2019
PLEASE HELP WITH 4 QUESTIONS ON ORGANIC CHEM!
The hybridization of the oxygen marked in the molecule below, is sp2. Using MOSTLY structures and at most, a few words, justify why this is so (and not the sp3 hybridization that might be assigned based on only a casual glance). Using separate Newman projections, draw the lowest energy and the highest energy conformation of 2,5-dimethylhexane (look down the C3-to-C4 bond). Be sure to label which is which. Indicate which H atom in the molecule shown below is most acidic by completing the following chemical reaction. Be sure the justification for your choice is clearly presented. (Again, for this problem, rely more on structures and use only a few words.) Haloethanes (CH3CH2X, X = Cl, Br, I) have very similar barriers to rotation around the C-C bond despite the substantial size increase as the halogen changes Cl to Br to I. In one sentence state the relationship between the observation reported above and what would be predicted given the known increase in size across the series of compounds. Draw a Newman projection of a staggered and an eclipsed conformation of one of the three haloethanes. Clearly state the best hypothesis that explains (rationalizes) the observation.
PLEASE HELP WITH 4 QUESTIONS ON ORGANIC CHEM!
The hybridization of the oxygen marked in the molecule below, is sp2. Using MOSTLY structures and at most, a few words, justify why this is so (and not the sp3 hybridization that might be assigned based on only a casual glance). Using separate Newman projections, draw the lowest energy and the highest energy conformation of 2,5-dimethylhexane (look down the C3-to-C4 bond). Be sure to label which is which. Indicate which H atom in the molecule shown below is most acidic by completing the following chemical reaction. Be sure the justification for your choice is clearly presented. (Again, for this problem, rely more on structures and use only a few words.) Haloethanes (CH3CH2X, X = Cl, Br, I) have very similar barriers to rotation around the C-C bond despite the substantial size increase as the halogen changes Cl to Br to I. In one sentence state the relationship between the observation reported above and what would be predicted given the known increase in size across the series of compounds. Draw a Newman projection of a staggered and an eclipsed conformation of one of the three haloethanes. Clearly state the best hypothesis that explains (rationalizes) the observation.
Jean KeelingLv2
20 Aug 2019