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- Chair conformations must be considered before determining overall chirality of a molecule. a. FALSE b. TRUECan you give me detail about the chiral carbon step by step with an examples, please?1) Are the molecules A and B... conformational isomers? Diastereomers? Enantiomers? Position isomers? Non-related? 2) What about the molecules B and C? 3) What about the molecules C and D?
- Of the molecules shown below, how many are chiral? CH3 CH3 CH3 Br Br CH3 CH3 CH3 1 3 4 ..|| ...||ChemistryA chiral center is a(n) (select all possible answers) atom bearing groups such that interchanging of any two groups leads to a stereoisomer. non‑superimposable mirror image. tetrahedral atom bonded to 4 different substituents. plane of symmetry so that there are no stereoisomers. enantiomer. tetrahedral atom.
- Is pentanoic acid a chiral molecule or not?3. Circle all compounds that are meso HO.... OH Br OH Br >Br1. How many chiral (stereocenters) centers are in the following molecules? Recall that a chiral center will have a carbon atom bonded to four different substituents. Please circle the chiral centers. Structure I HO... III. Br !!! СОН Structure II NH2
- 6. Use the molecule below to answer the following questions. a) Name the following molecule. b) Why is it necessary to provide R or S designation in order to clearly communicate molecular structure for this molecule? c) How many stereoisomers of this molecule are possible? Which of them are enantiomers to each other? Which are diastereomers? SH ICNClassify the pairs of molecules as not the same molecule, structural isomers, diastereomers, enantiomers or identical. Circle any molecules that are not achiral (a) (b) (c) Br... H CI H H Br H H3C Br H. CI Br H Br CI I I Br" "H H Br H CH3 Cr Br1. Determine if the molecules are chiral (meaning they have chiral centers and lack of plane of symmetry) in the following molecules. For molecules in Newman projections or chairs, it might be helpful to draw the sawhorse or perspective drawing first. NH2 H. CH3 a. b. H3C. C. H3C H CH3 OH NH2 d. e. f. H





