Assign the configuration of each chiral center in the following stereoisomer of 3-bromo-2-butanol: CH3 HO- -H H -Br CH3 O2R,3S 2S,3S 2S,3R O2R,3R

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8. The Fischer projection formula for D-mannose, a hexose sugar, is shown below. How many chiral centers are in D-mannose, please circle each Chiral C? HO- HO- H H CHO -H H -OH -OH CH₂OH Number of Chiral Centers and circle each in the structure: Study Guide Practice Questions 9. Draw the structure for 2-chloro-4-methylhexanal 10. What is the IUPAC name of the compound shown below? CH3 CH₂-C CH₂CH₂CH₂CHCH₂

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All the following questions have to do with a molecule with the formula of C10H11NO3 a) Draw the BOND LINE structure of an ACHIRAL molecule with no CHIRAL CENTERS b) Draw the BOND LINE structure of a CHIRAL c) Draw the BOND LINE structure for the ENANTIOMER in question b d) Draw the BOND LINE structure for the MESO compound e) Draw the BOND LINE structure for the molecule

2-hydroxypropanoic acid (lactic acid) has a chiral carbon atom. Draw the structure of lactic acid and mark the chiral atom with *. Draw three-dimensional diagrams of the two optical isomers to show that they are non-superimposable mirror images of each other. 1. Locate the chiral centre 2. Draw one enantiomer 3. Draw its mirror image beside it. in a tetrahedral shape - Draw and name the geometric isomers of C2H2CI2 3. Draw its mirror image beside it. 2. Draw one enantiomer in a tetrahedral shape 1. Locate the chiral centre

ÇI CH3CH=CHCHCH3 4-chloro-2-pentene Four stereoisomers exist for 4-chloro-2-pentene. Draw the structure of the isomer that has the E configuration around the double bond and the S configuration at the chiral center. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • You do not have to explicitly draw H atoms. • If a group is achiral, do not use wedged or hashed bonds on it.

Using only C, H and O, write a structural formula for the lowest-molecular-weight chiral molecule of each of the following compounds a) Alkane b)Alcohol c)Aldehyde d)Ketone e)Carboxylic Acid I realise this question has been asked but the previous seen formulas do not work for my homework.

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