6:37 PM Fri 1 Nov 105% → نظري عضوية ، Practice عماري نظري عضوية ، 1 ، نظري عضوية ،3 ، enantiomers Draw in a plane of symmetry for each molecule. HH A CH3 a. b. CH3 CH3 CH3 CH3 CH3 CH-CH₂ C. d. HC CH cr *Lo Locate the stereogenic center in each drug. Albuterol is a bronchodilator-that is, it widens airways-so it is used to treat asthma. Chloramphenicol is an antibiotic used extensively in developing countries because of its low cost. OH a HO- CHÍNH DỊCH NHOỊCH, H HO albuterol OH b. O₂N HO chloramphenicol CI CI The amino acid (S)-alanine has the physical characteristics listed under the structure. CH3 COOH CH NH₂ (S)-alanine [a] =+8.5 mp = 297 °C a. What is the melting point of (R)-alanine? b. How does the melting point of a racemic mixture of (R)- and (S)-alanine compare to the melting point of (S)-alanine? c. What is the specific rotation of (R)-alanine, recorded under the same conditions as the reported rotation of (S)-alanine? d. What is the optical rotation of a racemic mixture of (R)- and (S)-alanine? e. Label each of the following as optically active or inactive: a solution of pure (S)-alanine; an equal mixture of (R)- and (S)-alanine; a solution that contains 75% (S)- and 25% (R)-alanine. What is the maximum number of stereoisomers possible for each compound? OH 96% < 49/50 > 6:37 PM Fri 1 Nov 105% → نظري عضوية ، Practice عماري نظري عضوية ، 1 ، نظري عضوية ،3 ، enantiomers Draw in a plane of symmetry for each molecule. HH A CH3 a. b. CH3 CH3 CH3 CH3 CH3 CH-CH₂ C. d. HC CH cr *Lo Locate the stereogenic center in each drug. Albuterol is a bronchodilator-that is, it widens airways-so it is used to treat asthma. Chloramphenicol is an antibiotic used extensively in developing countries because of its low cost. OH a HO- CHÍNH DỊCH NHOỊCH, H HO albuterol OH b. O₂N HO chloramphenicol CI CI The amino acid (S)-alanine has the physical characteristics listed under the structure. CH3 COOH CH NH₂ (S)-alanine [a] =+8.5 mp = 297 °C a. What is the melting point of (R)-alanine? b. How does the melting point of a racemic mixture of (R)- and (S)-alanine compare to the melting point of (S)-alanine? c. What is the specific rotation of (R)-alanine, recorded under the same conditions as the reported rotation of (S)-alanine? d. What is the optical rotation of a racemic mixture of (R)- and (S)-alanine? e. Label each of the following as optically active or inactive: a solution of pure (S)-alanine; an equal mixture of (R)- and (S)-alanine; a solution that contains 75% (S)- and 25% (R)-alanine. What is the maximum number of stereoisomers possible for each compound? OH 96% < 49/50 >

6:37 PM Fri 1 Nov 105% → نظري عضوية ، Practice عماري نظري عضوية ، 1 ، نظري عضوية ،3 ، enantiomers Draw in a plane of symmetry for each molecule. HH A CH3 a. b. CH3 CH3 CH3 CH3 CH3 CH-CH₂ C. d. HC CH cr Lo Locate the stereogenic center in each drug. Albuterol is a bronchodilator-that is, it widens airways-so it is used to treat asthma. Chloramphenicol is an antibiotic used extensively in developing countries because of its low cost. OH a HO- CHÍNH DỊCH NHOỊCH, H HO albuterol OH b. O₂N HO chloramphenicol CI CI The amino acid (S)-alanine has the physical characteristics listed under the structure. CH3 COOH CH NH₂ (S)-alanine [a] =+8.5 mp = 297 °C a. What is the melting point of (R)-alanine? b. How does the melting point of a racemic mixture of (R)- and (S)-alanine compare to the melting point of (S)-alanine? c. What is the specific rotation of (R)-alanine, recorded under the same conditions as the reported rotation of (S)-alanine? d. What is the optical rotation of a racemic mixture of (R)- and (S)-alanine? e. Label each of the following as optically active or inactive: a solution of pure (S)-alanine; an equal mixture of (R)- and (S)-alanine; a solution that contains 75% (S)- and 25% (R)-alanine. What is the maximum number of stereoisomers possible for each compound? OH 96% < 49/50 > 6:37 PM Fri 1 Nov 105% → نظري عضوية ، Practice عماري نظري عضوية ، 1 ، نظري عضوية ،3 ، enantiomers Draw in a plane of symmetry for each molecule. HH A CH3 a. b. CH3 CH3 CH3 CH3 CH3 CH-CH₂ C. d. HC CH cr Lo Locate the stereogenic center in each drug. Albuterol is a bronchodilator-that is, it widens airways-so it is used to treat asthma. Chloramphenicol is an antibiotic used extensively in developing countries because of its low cost. OH a HO- CHÍNH DỊCH NHOỊCH, H HO albuterol OH b. O₂N HO chloramphenicol CI CI The amino acid (S)-alanine has the physical characteristics listed under the structure. CH3 COOH CH NH₂ (S)-alanine [a] =+8.5 mp = 297 °C a. What is the melting point of (R)-alanine? b. How does the melting point of a racemic mixture of (R)- and (S)-alanine compare to the melting point of (S)-alanine? c. What is the specific rotation of (R)-alanine, recorded under the same conditions as the reported rotation of (S)-alanine? d. What is the optical rotation of a racemic mixture of (R)- and (S)-alanine? e. Label each of the following as optically active or inactive: a solution of pure (S)-alanine; an equal mixture of (R)- and (S)-alanine; a solution that contains 75% (S)- and 25% (R)-alanine. What is the maximum number of stereoisomers possible for each compound? OH 96% < 49/50 >

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter12: Infrared Spectroscopy

Section: Chapter Questions

Problem 12.9P

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