For the given molecules, determine if each are in the R or S configuration at the indicated (*) stereo center. Draw each compound and show your work by labelling the priority of each group and using the rotation/swap method as needed.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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For the given molecules, determine if each are in the R or S configuration at the indicated (*) stereo center. Draw each compound and show your work by labelling the priority of each group and using the rotation/swap method as needed.

This image contains three chemical structures labeled a, b, and c as part of an educational exercise.

Structure 3a:
- This is a chiral molecule with one stereocenter marked by an asterisk (*).
- The structure shows a carbon atom bonded to a methoxy group (OCH₃), a methyl group (CH₃), and another carbon atom.

Structure 3b:
- This structure includes a carbonyl group, evident from the oxygen double-bonded to a carbon (C=O).
- The central carbon is bonded to a hydrogen (H) and a methyl group (CH₃).
- The stereocenter is indicated by the wedge and dash notation showing 3D orientation.

Structure 3c:
- A chiral molecule with one stereocenter, marked with an asterisk (*).
- It features a carbon atom bonded to a hydrogen (H), a hydroxyl group (OH), and a fluorine atom (F).
- The 3D orientation is indicated using wedge and dash bonds.

Each structure demonstrates different chemical groups and stereochemistry, likely used to teach stereochemistry concepts in organic chemistry.
Transcribed Image Text:This image contains three chemical structures labeled a, b, and c as part of an educational exercise. Structure 3a: - This is a chiral molecule with one stereocenter marked by an asterisk (*). - The structure shows a carbon atom bonded to a methoxy group (OCH₃), a methyl group (CH₃), and another carbon atom. Structure 3b: - This structure includes a carbonyl group, evident from the oxygen double-bonded to a carbon (C=O). - The central carbon is bonded to a hydrogen (H) and a methyl group (CH₃). - The stereocenter is indicated by the wedge and dash notation showing 3D orientation. Structure 3c: - A chiral molecule with one stereocenter, marked with an asterisk (*). - It features a carbon atom bonded to a hydrogen (H), a hydroxyl group (OH), and a fluorine atom (F). - The 3D orientation is indicated using wedge and dash bonds. Each structure demonstrates different chemical groups and stereochemistry, likely used to teach stereochemistry concepts in organic chemistry.
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