Homework Answers
Ans 2 :
For an isomer to be optically active , it must have a chiral carbon center or an asymmetric carbon atom. The molecule must must have an isomer that is a non-superimposable mirror image. So these molecules are not exactly same as their mirror images basically.
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2. What is a necessary condition for the occurrence of isomers that are optically active? 4. Which structural isom...
FOTO UV 1. Which of the molecules shown can exhibit optical isomerism? Use an arrow to...
FOTO UV 1. Which of the molecules shown can exhibit optical isomerism? Use an arrow to indicate the chiral center in each optically active molecule. OH NH2 CH3-CH-COOH glycine CH3CH-COOH lactic acids ОН row S1 HOCH CH-CH2OH cibo no glycerol DUO 2. In this experiment, you found that a molecule with one chiral center has two optical isomers, and a com- pound with two chiral centers has four optical isomers. How many optical isomers are possible for a com- pound...
9. C (Z-2-hexene d. They are all of equal stability. Choose the most stable alkene among...
9. C (Z-2-hexene d. They are all of equal stability. Choose the most stable alkene among the following a 1-hexene b. (E)-2-hexene 10. What is the relation between an enantiomer's configuration and its specific rotation? (a) Rcompounds usually are dextrorotatory with few exceptions (b) R compounds always are dextrorotatory. (c) There is no relation. (d) R compounds always are levorotatory 11. How many chiral centers are there in tartaric acid, and how many different stereoisomers exist for this acid? он...
Problem 2. Stereochemistry (30 points). Within each set of stereoisomers shown below determine whether the isomer...
Problem 2. Stereochemistry (30 points). Within each set of stereoisomers shown below determine whether the isomer is chiral (optically active) or achiral (optically inactive). Identify enantiomers, diastereomers, and isomers that are the same. For those that are chiral, determine the stereochemical configuration (R or S) at each chiral center. CH3 CH3 CH3 H₃C 2CH3 HC H₃ C CH3 CH3 H₃ C CH3 CH3 CH CH3 H3C нс, ***CH3 CH3 H₃ C CH3 не сез ОН ОН ОН ОН ОН ОН...
please help with this page! CHEM211-Summer 2019 Stereochemistry Part 2) Homework 4 1) What type of...
please help with this page!
CHEM211-Summer 2019 Stereochemistry Part 2) Homework 4 1) What type of isomers are CH3CH2OCH3 and CH3CH CH2OH? constitutional B) symmetrical conformational C) configurational E) stereochemical CH сн What is the relationship between the following compounds? 2) HCCI and H CHCI CH constitutional isomers diastercomers superimposable without bond rotation B) enantiomers D) conformational isomers A) C) E) 3) What is the relationship between the structures shown below? diastercoma constitutional isomers conformational isomers sonfigurational isomers enantiomers A)...
please answer in multiple choice format What is the relationship between these two 23. What is...
please answer in multiple choice format
What is the relationship between these two 23. What is the relationship between these two molecules? molecules? BH BH que a. identical b. enantiomers c. diastereomers d. constitutional isomers 19. Which statement is FALSE about chiral molecules? a. Their chiral Carbons are sp hybridized. b. They have an internal plane of symmetry. c. They are optically active. d. Chiral centers are bonded to four different groups. a. enantiomers b. diastereomers c. identical d. unrelated...
please explain why the answers are what they are. thank you 18. Which one of these...
please explain why the answers are what they are.
thank you
18. Which one of these molecules does not contain any stereogenic centers? 19. How do the two chemical structures shown in the box below compare to one another? a) They represent the same molecule. b) They are isotopes. (c) They are constitutional isomers. d) They have different chemical formulas. 23. Based on structural characteristics, predict which of these substances has the lowest melting point @woo woo Dance CH 3....
4.81,4.82 Chapter Review 177 481 Are the following compounds structural isomers, cis-trans isomers, or enantiomers? 4.82...
4.81,4.82
Chapter Review 177 481 Are the following compounds structural isomers, cis-trans isomers, or enantiomers? 4.82 Draw the enantiomer of each of the following com- pounds. If the compound is not chiral, state that fact. a. H Η and b. HO Find Br" CH, MF HC Br b. Br но Br. OH w and b. H H-C-H HH H-C-C-C- H C H,CH(CH), c. Che Problems 4.83 Cartat omega-3 fatty acids can be found only in animal sources, such as fatty...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23,...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23, 4.24, 4.26 pg 170 - 4.29, 4.31, pg 171-4.36 pg 175 - 4.59 pg 176- 4.74, 4.75, 4.80 pg 177-4.81, 4.82 pg 188- 5.1, 5.4, 5.5, 5.6, 5.11 - Using Table 5.1 pg 198-5.22, 5.25 pg 203 - 5.29 pg 206 - 5.37 pg 209 - 5.39 pg 2.14 5.61 pg 235-6.11, 6.14, 6.16 156 CHAPTER 4 Introduction to Organic Compounds...
FOTO UV 1. Which of the molecules shown can exhibit optical isomerism? Use an arrow to indicate the chiral center in each optically active molecule. OH NH2 CH3-CH-COOH glycine CH3CH-COOH lactic acids ОН row S1 HOCH CH-CH2OH cibo no glycerol DUO 2. In this experiment, you found that a molecule with one chiral center has two optical isomers, and a com- pound with two chiral centers has four optical isomers. How many optical isomers are possible for a com- pound...
9. C (Z-2-hexene d. They are all of equal stability. Choose the most stable alkene among the following a 1-hexene b. (E)-2-hexene 10. What is the relation between an enantiomer's configuration and its specific rotation? (a) Rcompounds usually are dextrorotatory with few exceptions (b) R compounds always are dextrorotatory. (c) There is no relation. (d) R compounds always are levorotatory 11. How many chiral centers are there in tartaric acid, and how many different stereoisomers exist for this acid? он...
Problem 2. Stereochemistry (30 points). Within each set of stereoisomers shown below determine whether the isomer is chiral (optically active) or achiral (optically inactive). Identify enantiomers, diastereomers, and isomers that are the same. For those that are chiral, determine the stereochemical configuration (R or S) at each chiral center. CH3 CH3 CH3 H₃C 2CH3 HC H₃ C CH3 CH3 H₃ C CH3 CH3 CH CH3 H3C нс, ***CH3 CH3 H₃ C CH3 не сез ОН ОН ОН ОН ОН ОН...
please help with this page!
CHEM211-Summer 2019 Stereochemistry Part 2) Homework 4 1) What type of isomers are CH3CH2OCH3 and CH3CH CH2OH? constitutional B) symmetrical conformational C) configurational E) stereochemical CH сн What is the relationship between the following compounds? 2) HCCI and H CHCI CH constitutional isomers diastercomers superimposable without bond rotation B) enantiomers D) conformational isomers A) C) E) 3) What is the relationship between the structures shown below? diastercoma constitutional isomers conformational isomers sonfigurational isomers enantiomers A)...
please answer in multiple choice format
What is the relationship between these two 23. What is the relationship between these two molecules? molecules? BH BH que a. identical b. enantiomers c. diastereomers d. constitutional isomers 19. Which statement is FALSE about chiral molecules? a. Their chiral Carbons are sp hybridized. b. They have an internal plane of symmetry. c. They are optically active. d. Chiral centers are bonded to four different groups. a. enantiomers b. diastereomers c. identical d. unrelated...
please explain why the answers are what they are.
thank you
18. Which one of these molecules does not contain any stereogenic centers? 19. How do the two chemical structures shown in the box below compare to one another? a) They represent the same molecule. b) They are isotopes. (c) They are constitutional isomers. d) They have different chemical formulas. 23. Based on structural characteristics, predict which of these substances has the lowest melting point @woo woo Dance CH 3....
4.81,4.82
Chapter Review 177 481 Are the following compounds structural isomers, cis-trans isomers, or enantiomers? 4.82 Draw the enantiomer of each of the following com- pounds. If the compound is not chiral, state that fact. a. H Η and b. HO Find Br" CH, MF HC Br b. Br но Br. OH w and b. H H-C-H HH H-C-C-C- H C H,CH(CH), c. Che Problems 4.83 Cartat omega-3 fatty acids can be found only in animal sources, such as fatty...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23, 4.24, 4.26 pg 170 - 4.29, 4.31, pg 171-4.36 pg 175 - 4.59 pg 176- 4.74, 4.75, 4.80 pg 177-4.81, 4.82 pg 188- 5.1, 5.4, 5.5, 5.6, 5.11 - Using Table 5.1 pg 198-5.22, 5.25 pg 203 - 5.29 pg 206 - 5.37 pg 209 - 5.39 pg 2.14 5.61 pg 235-6.11, 6.14, 6.16 156 CHAPTER 4 Introduction to Organic Compounds...
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