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Which of the following is true about any (R)-enantiomer? a. It is dextrorotatory. b. It is...
10) Which of the following statements is (are) true for the compound (R)-2-butanol? A) This compound...
10) Which of the following statements is (are) true for the compound (R)-2-butanol? A) This compound is chiral. B) This compound is optically active. C) This compound has an enantiomer D) all of the above E) none of the above 11) Predict the specific rotation of the compound shown. CH нс A) It is impossible to predict; it must be determined experimentally. B) Because both asymmetric centers are R, the compound is dextrorotatory. C) Because both asymmetric centers are S,...
8. Indicate whether each of the following statements is true or false. If a statement is...
8. Indicate whether each of the following statements is true or false. If a statement is false, explain why a) Two structural isomers may be chiral. : True b) A compound must be chiral in order to have an enantiomer. True c) A chiral compound with an asymmetric carbon atom designated always has a positive optical rotation. False (R) as d) Mirror-image molecules are always enantiomers. False chiral. False e) All compounds with asymmetric carbon atoms are f)The relative configuration...
the answers i circled are incorrect. can you give me all the correct answers and explain...
the answers i circled are incorrect. can you give me all the
correct answers and explain why?
2) Which of the statements below correctly describes an achiral molecule? A The molecule has a nonsuperimposable mirror image. cule exhibits optical activity when it interacts with plane-polarized light. C) The molecule has an enantiomer. D) The molecule might be a meso form. E) None of the above 3) Predict the specific rotation of the compound shown. CH нс 4 A) It is...
the answers i circled are incorrect. can you give me the correct answers and explain why?...
the answers i circled are incorrect. can you give me the
correct answers and explain why?
postural de Pero ss and so Lalash, an walach asymmetric carbon as Ror S. (3) label the How many asymmetric carbon atoms are present in the following compound A) B) 1 D) 3 E) 4 2) Which of the statements below correctly describes an achiral molecule? The molecule has a nonsuperimposable mirror image. B) The molecule exhibits optical activity when it interacts with plane-polarized...
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...
Which of the following statements is true about the products (A and B) of the reaction...
Which of the following statements is true about the products (A and B) of the reaction shown below? HBr A + B Br 1 (a) A and B are enantiomers. (b) A and B are racemic mixture (c) A and B are diastereomers. (d) Two of the above (e) All of the above
if a sample contains 83% of the R enantiomer and 17% of the S, what is...
if
a sample contains 83% of the R enantiomer and 17% of the S, what is
the enantiomeric sxcess?
the following compound is optically active or not. all 2019 Achical Be No 3 Br 03 pts.] If a sample contains 83% of the R enantiomer and 17% of the S enantiomer vhat is the enantiomeric excess of the mixture. 3 pts.1 What is the specific rotation of a sample of carvone that is an equal mixture the R and S...
Which of the following statement is true? A. Two diastereomers always have the same melting point.B....
Which of the following statement is true? A. Two diastereomers always have the same melting point.B. A mesocompound and its corresponding racemic mixture always have the same melting point.C. An enantiomer and its corresponding racemic mixture always have the same melting point.D. None of the above.
Which statement is true about a racemic mixture? TV Select one: O a. The specific rotation...
Which statement is true about a racemic mixture? TV Select one: O a. The specific rotation equals zero ob. Both enantiomers are present in equal amounts O c. The bp of the racemic mixture is equal to the bp of the pure enantiomers Od. All of the above
IV) Acid/Base Reaction - Answer the next few questions about Molecule B, shown below. a) Circle...
IV) Acid/Base Reaction - Answer the next few questions about Molecule B, shown below. a) Circle the terms that correctly describe the molecule. H-bond acceptor dextrorotatory contains ketone racemic has enantiomer H-bond donor Molecule B [a] = -27.8° optically active contains aldehyde levorotatory b) Molecule B can react with another molecule in an acid/base reaction (shown below). olgan In the spaces provided, please do the following: i) Draw the structure of the missing molecule in the space provided. ii) Circle...
10) Which of the following statements is (are) true for the compound (R)-2-butanol? A) This compound is chiral. B) This compound is optically active. C) This compound has an enantiomer D) all of the above E) none of the above 11) Predict the specific rotation of the compound shown. CH нс A) It is impossible to predict; it must be determined experimentally. B) Because both asymmetric centers are R, the compound is dextrorotatory. C) Because both asymmetric centers are S,...
8. Indicate whether each of the following statements is true or false. If a statement is false, explain why a) Two structural isomers may be chiral. : True b) A compound must be chiral in order to have an enantiomer. True c) A chiral compound with an asymmetric carbon atom designated always has a positive optical rotation. False (R) as d) Mirror-image molecules are always enantiomers. False chiral. False e) All compounds with asymmetric carbon atoms are f)The relative configuration...
the answers i circled are incorrect. can you give me all the
correct answers and explain why?
2) Which of the statements below correctly describes an achiral molecule? A The molecule has a nonsuperimposable mirror image. cule exhibits optical activity when it interacts with plane-polarized light. C) The molecule has an enantiomer. D) The molecule might be a meso form. E) None of the above 3) Predict the specific rotation of the compound shown. CH нс 4 A) It is...
the answers i circled are incorrect. can you give me the
correct answers and explain why?
postural de Pero ss and so Lalash, an walach asymmetric carbon as Ror S. (3) label the How many asymmetric carbon atoms are present in the following compound A) B) 1 D) 3 E) 4 2) Which of the statements below correctly describes an achiral molecule? The molecule has a nonsuperimposable mirror image. B) The molecule exhibits optical activity when it interacts with plane-polarized...
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...
Which of the following statements is true about the products (A and B) of the reaction shown below? HBr A + B Br 1 (a) A and B are enantiomers. (b) A and B are racemic mixture (c) A and B are diastereomers. (d) Two of the above (e) All of the above
if
a sample contains 83% of the R enantiomer and 17% of the S, what is
the enantiomeric sxcess?
the following compound is optically active or not. all 2019 Achical Be No 3 Br 03 pts.] If a sample contains 83% of the R enantiomer and 17% of the S enantiomer vhat is the enantiomeric excess of the mixture. 3 pts.1 What is the specific rotation of a sample of carvone that is an equal mixture the R and S...
Which statement is true about a racemic mixture? TV Select one: O a. The specific rotation equals zero ob. Both enantiomers are present in equal amounts O c. The bp of the racemic mixture is equal to the bp of the pure enantiomers Od. All of the above
IV) Acid/Base Reaction - Answer the next few questions about Molecule B, shown below. a) Circle the terms that correctly describe the molecule. H-bond acceptor dextrorotatory contains ketone racemic has enantiomer H-bond donor Molecule B [a] = -27.8° optically active contains aldehyde levorotatory b) Molecule B can react with another molecule in an acid/base reaction (shown below). olgan In the spaces provided, please do the following: i) Draw the structure of the missing molecule in the space provided. ii) Circle...
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