Compare the C-C bonds in the following structures: CH3-CH3, H₂C=CH2, HC=CH. Rank the C-C bonds in these structures in order from weakest to strongest. A) CH3-CH3 < HC=CH2 < HC=CH B) HCECH < CH3-CH3
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- With link additivity values estimate DH ° 298 for CH3CH2OH (g) → CH3OCH3 (g).What does the (2H,ddd, J=8.3 Hz) mean? What would be the possible structure of this? The compound is C8H8O2In his classic studies of stereochemistry and optical activity in organic compounds, Pasteur measured the optical activity of many solutions. For the naturally occurring enantiomer of tartaric acid, [α]D20 = +12.4o (c = 20, H2O). What can be concluded about the ratio of tartaric acid enantiomers present in the solution if the observed rotation α = 0o?
- one of the chair structures of cis-1-chloro-3-methylcyclohexane is more stable than the other by 15.5 kj/mol (3.7kcal/mo) which is it ? what is the energy cost of a 1,3-diaxial interaction between a chlorine and a methyl group?how many possible consitutional isomers are there for C2H4Cl2?Consider 1-bromopropane, CH3CH2CH2Br. (a) Draw Newman projections for the conformations in which -CH3 and -Br are gauche (dihedral angles 60° and 300°).