Chemistry help please 3 easy
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Chemistry help please 3 easy
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3. Which are the correct configurations of the two chirality...
CHAPTER 25 2. If D-arabinose underwent the Wohl Degradation (chain shortening), what new sugar would be...
CHAPTER 25 2. If D-arabinose underwent the Wohl Degradation (chain shortening), what new sugar would be produced. Draw the Fischer projection of the new sugar. CHO HO -H Wohl H ОН Degradation H OH CH OH D-Arabinose
What is the correct R/S configuration for each of the three stereocenters in the molecule below...
What is the correct R/S configuration for each of the three
stereocenters in the molecule below
Choose the best term that best describes the relationship
between this pair of molecules
1) What is the correct R/S configuration for each of the three stereocenters in the molecule below (1 mark) CH3 -ОН Н- -ОН Н- -OH Н- CH2CH3 a) 2R, 3S, 4R b) 2R, 3R, 4S c) 2S, 3R, 4R d) 2S, 3S, 4R е) 28, 3R, 4S 2) Choose the...
CARBOHYDRATES POST-LAB QUESTIONS [52] 19. Review the Fischer structures of D-galactose, D-glucose, and D-mannose Identify each...
CARBOHYDRATES POST-LAB QUESTIONS [52] 19. Review the Fischer structures of D-galactose, D-glucose, and D-mannose Identify each structure. [12 pts) CHO CHO CHO Н. -OH HO -H H -OH HO -H HO H HO -H Н. OH H OH HO -H H -OH H ОН Н. ОН CH2OH CH2OH CH2OH D-Glucose D-Mannose TD-Galactose 20. Would either D-galactose or D-mannose form an osazone identical to the glucose osazone? [5 pts] 21. Explain: [5 pts) [5 pts] 22. What structural feature do all...
29 Give the configurations, respectively, of the following two molecules. CH HO H and CI A. B. C....
29 Give the configurations, respectively, of the following two molecules. CH HO H and CI A. B. C. R and R R and S S and S D. S and R 30 Give the configurations, reypectively, of the folowing two molecules H CH CHy A. B. C. R and R R and S Sand S D. S and R Which one of the following groups has the highest rank as assigned by the Cahn- Ingold-Prelog system for stereogenic (chiral) carbons?...
18. Assign the absolute configuration of the two stereocenters in stereoisomer of 2-bromo-3-pentanol shown below. Br...
18. Assign the absolute configuration of the two stereocenters in stereoisomer of 2-bromo-3-pentanol shown below. Br ОН a) 2R, 3R b) 2R, 3S c) 2S, 3R d) 2S, 3S 19. The following are 5 stereorepresentations of 1,5-dimercaptopentane-1,5-diol. Taking (1) as a reference structure. Determine if each of the other stereorepresentations are conformers to (1), enantiomers to (1) and diastereomers of (1). OH OH Enantiomer Diastereomer Conformer HS SH (2) он SH Enantiomer Diastereomer Conformer OH OH HS "ОН (3) ON...
I need some help to answer these following questions. Thanks. 41. Which molecule(s) is/are aromatic? I1...
I need some help to answer these following questions.
Thanks.
41. Which molecule(s) is/are aromatic? I1 IV (A) I only (C) I, III, and IV (B) I and IV (D) I, II, III, and IV OH OH 42. Which Fischer projection represents this structure? HO OH OH H CHO CHO (A) H-OH (B) HOH HOH CH2OH CH2OH CHO HOH CHO но -н CH2OH CH2OH 43. Which is a product of this ozonolysis reaction? 1.03 2. (CH3)2S H O I BHs/THF...
T. How many stereoisomers of beta-D-glucopyranose exist (including itself)? a. 4 e. too many to consider...
T. How many stereoisomers of beta-D-glucopyranose exist (including itself)? a. 4 e. too many to consider b. 8 с. 16 d. 32 onsider the following Fischer projections and answer the questions: CHO H OH HO H H OH H O ČH2OH glucose CHO CHO H OH Но- СНО н H- OH HO OH HO -н -н H- OH H HO -H HO н- H OH ČH2OH H OH CH2OH OH CH OH allose galactose talose 2. Which pair are not...
six questions plz help i leave rating The missing product from the following reaction is OH...
six questions plz help i leave rating
The missing product from the following reaction is OH NaOH + H20 COH Co Na* H A OrNa* A B C D Question 28 What is the name of the following ether compound? • Previous Which carbon is the alpha, a, carbon? I HO III II IV 11 III IV EXC o Na OH O" Na O Na OH Na Is this monosaccharide a Dor L sugar? CH2OH C=0 H ОН H ОН...
CHEM 2060 HOMEWORK #4 Chp. 5 and 6 Due March 5th, 2020, 1:20 PM! 1. Fill...
CHEM 2060 HOMEWORK #4 Chp. 5 and 6 Due March 5th, 2020, 1:20 PM! 1. Fill in the squares with the corresponding chirality (R or S) for the following pairs of chemical structures and determine whether they are Enantiomers, Diastereomers or the Same Compound. (20 points total) U - Br FT NH2 NH2 Br COH A) Enantiomers COZH C) Same Molecule B) Diastereomers CH3O HSCH CICH2 FH Hс-н H CH3 CHCI SHU A) Enantiomers B) Diastereomers C) Same Molecule back...
1. Which of the following is an aldohexose? 2. Which of the following is a cetopentose? 3. Which of the following best d...
1.
Which of the following is an aldohexose?
2. Which of the following is a cetopentose?
3. Which of the following best describes the relationship
between D-glucose and D-fructose?
4. Which of the following is (are) L-alfohexose(s)?
5. Which of the following aldohexose(s) is (are)
dextrorotatory?
6. How many stereoisomers are possible for L-galactose? Draw
or look for its structure.
7. Which of the following conpounds is a pair of
enantiomers?
8. Draw the fisher projection for L-sedoheptulose and also...
CHAPTER 25 2. If D-arabinose underwent the Wohl Degradation (chain shortening), what new sugar would be produced. Draw the Fischer projection of the new sugar. CHO HO -H Wohl H ОН Degradation H OH CH OH D-Arabinose
What is the correct R/S configuration for each of the three
stereocenters in the molecule below
Choose the best term that best describes the relationship
between this pair of molecules
1) What is the correct R/S configuration for each of the three stereocenters in the molecule below (1 mark) CH3 -ОН Н- -ОН Н- -OH Н- CH2CH3 a) 2R, 3S, 4R b) 2R, 3R, 4S c) 2S, 3R, 4R d) 2S, 3S, 4R е) 28, 3R, 4S 2) Choose the...
CARBOHYDRATES POST-LAB QUESTIONS [52] 19. Review the Fischer structures of D-galactose, D-glucose, and D-mannose Identify each structure. [12 pts) CHO CHO CHO Н. -OH HO -H H -OH HO -H HO H HO -H Н. OH H OH HO -H H -OH H ОН Н. ОН CH2OH CH2OH CH2OH D-Glucose D-Mannose TD-Galactose 20. Would either D-galactose or D-mannose form an osazone identical to the glucose osazone? [5 pts] 21. Explain: [5 pts) [5 pts] 22. What structural feature do all...
29 Give the configurations, respectively, of the following two molecules. CH HO H and CI A. B. C. R and R R and S S and S D. S and R 30 Give the configurations, reypectively, of the folowing two molecules H CH CHy A. B. C. R and R R and S Sand S D. S and R Which one of the following groups has the highest rank as assigned by the Cahn- Ingold-Prelog system for stereogenic (chiral) carbons?...
18. Assign the absolute configuration of the two stereocenters in stereoisomer of 2-bromo-3-pentanol shown below. Br ОН a) 2R, 3R b) 2R, 3S c) 2S, 3R d) 2S, 3S 19. The following are 5 stereorepresentations of 1,5-dimercaptopentane-1,5-diol. Taking (1) as a reference structure. Determine if each of the other stereorepresentations are conformers to (1), enantiomers to (1) and diastereomers of (1). OH OH Enantiomer Diastereomer Conformer HS SH (2) он SH Enantiomer Diastereomer Conformer OH OH HS "ОН (3) ON...
I need some help to answer these following questions.
Thanks.
41. Which molecule(s) is/are aromatic? I1 IV (A) I only (C) I, III, and IV (B) I and IV (D) I, II, III, and IV OH OH 42. Which Fischer projection represents this structure? HO OH OH H CHO CHO (A) H-OH (B) HOH HOH CH2OH CH2OH CHO HOH CHO но -н CH2OH CH2OH 43. Which is a product of this ozonolysis reaction? 1.03 2. (CH3)2S H O I BHs/THF...
T. How many stereoisomers of beta-D-glucopyranose exist (including itself)? a. 4 e. too many to consider b. 8 с. 16 d. 32 onsider the following Fischer projections and answer the questions: CHO H OH HO H H OH H O ČH2OH glucose CHO CHO H OH Но- СНО н H- OH HO OH HO -н -н H- OH H HO -H HO н- H OH ČH2OH H OH CH2OH OH CH OH allose galactose talose 2. Which pair are not...
six questions plz help i leave rating
The missing product from the following reaction is OH NaOH + H20 COH Co Na* H A OrNa* A B C D Question 28 What is the name of the following ether compound? • Previous Which carbon is the alpha, a, carbon? I HO III II IV 11 III IV EXC o Na OH O" Na O Na OH Na Is this monosaccharide a Dor L sugar? CH2OH C=0 H ОН H ОН...
CHEM 2060 HOMEWORK #4 Chp. 5 and 6 Due March 5th, 2020, 1:20 PM! 1. Fill in the squares with the corresponding chirality (R or S) for the following pairs of chemical structures and determine whether they are Enantiomers, Diastereomers or the Same Compound. (20 points total) U - Br FT NH2 NH2 Br COH A) Enantiomers COZH C) Same Molecule B) Diastereomers CH3O HSCH CICH2 FH Hс-н H CH3 CHCI SHU A) Enantiomers B) Diastereomers C) Same Molecule back...
1.
Which of the following is an aldohexose?
2. Which of the following is a cetopentose?
3. Which of the following best describes the relationship
between D-glucose and D-fructose?
4. Which of the following is (are) L-alfohexose(s)?
5. Which of the following aldohexose(s) is (are)
dextrorotatory?
6. How many stereoisomers are possible for L-galactose? Draw
or look for its structure.
7. Which of the following conpounds is a pair of
enantiomers?
8. Draw the fisher projection for L-sedoheptulose and also...
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