Homework Answers
1. human being is an eukaryote organism. human being is also a chemoheterotroph but that does not define a human being. many other organisms are also included under chemo heterotroph, some prokaryotic organisms like bacteria are also included.
2. none.
reason- "a" has 2 H atoms, "b" has 2 similar CH2OH group, "c" has 2 H atoms.
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Quiz 1. Biochemtry. 8-31-2015 Last Name First Name 1. Which of the following describes human being...
carton 2 in the following molecule 20. What are the configurations around the Carbon 2 CON=s...
carton 2 in the following molecule 20. What are the configurations around the Carbon 2 CON=s CW -R Carbon 1 a. Carbon 1 has an Sconfiguration, and Carbon 2 has an Sconfiguration. (b) Only Carbon 2 is chiral, and it has an Sconfiguration. c. Carbon 1 has an Sconfiguration, and Carbon 2 has an R configuration. Carbon 1 has an R configuration, and Carbon 2 has an Sconfiguration. Carbon 1 has an R configuration, and Carbon 2 has an R...
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...
1. Draw the (major) organic products of the following reactions: HNO3 H2SO4 HN (CH3)3CBr AlBr3 FeBr3...
1. Draw the (major) organic products of the following reactions: HNO3 H2SO4 HN (CH3)3CBr AlBr3 FeBr3 Br Sort the following molecules by their reactivity toward electrophilic aromatic substitution (1-most reactive, 4 2. least reactive): NH2 so,H Place either the letter A or C below the following compounds to indicate whether each of them are achiral (A) or chiral (C) 3. но Cl Determine the configuration (R or S) for each stereocenter in the following compounds: 4. Cl Cl NH2 но...
Key terms: chiral center, enantiomers, diasteriomers, meso compound, racemic mixture Part 1 - Make models of...
Key terms: chiral center, enantiomers, diasteriomers, meso compound, racemic mixture Part 1 - Make models of each of the following and give both perspective and Fischer formulas for all possible isomers and label each as chiral or achiral. Where applicable, specify as R or S each steroisomer and clearly label paint of enantimers, diasteromers and meso compounds a) The simplest amino acid glycine b) The second simplest alpha amino acid alanine c) Monosaccharide tetrose, CH_2(OH)-CH(OH)-CH(OH)-CHO d) 2, 3-Di-bromobutanes. e) 1,...
1.) Name the following compounds including stereochemistry. + Br 2.) Assign configurations to each of the...
1.) Name the following compounds including stereochemistry. + Br 2.) Assign configurations to each of the chiral centers and circle the stereochemical relationship of the two compounds shown below in Fischer notation? CH3 C2H5 Br- H CH HCI Brt CzH5 A) enantiomers. B) diastereomers - C) constitutional isomers- D) cis/trans - isomers E) meso - same structure CH3 3.) Draw the structure of the meso form of 1,3-dichlorocyclopentane. Take particular care to indicate three-dimensional stereochemical detail properly. -
4,5,6 4. (1 pt.) Name the following compounds. Assign R S for chiral center and use...
4,5,6
4. (1 pt.) Name the following compounds. Assign R S for chiral center and use E Z to describe double bond. 5. (1 pt.) How many tetrahedral stereocenters (chiral centers) are there in the molecule shown below. Mark each one with an asterisk. B. How many configurational isomers total are possible for this structure? A Number of tetrahedral stereocenters B. Total number of configurational isomers 6. (1 pt.) Identify all molecules that are chiral and the ones that are...
1. For each pair, circle the molecule with the lower pK and provide a brief explanation...
1. For each pair, circle the molecule with the lower pK and provide a brief explanation for your choice. wale wabon ---- 2. For each molecule, draw the two possible chair conformers and circle the preferred conformer. a) cis-1,3-dimethylcyclohexane trans-1,4-dimethylcyclohexane 3. Draw all distinct isomers of dimethylcyclopropane and show the relationship as enantiomer, diastereomer or meso. 4. In each of the following pairs of compounds one is chiral and the other achiral, Circle the chiral compound in each. a) CH,CHCH=CH...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers and meso compounds. II) Assign the absolute configuration of chiral carbons in each molecule OCH3 HO+Br HS+CN H2N-CH3 HOSH Он HO+CH3 н OCH3 Сн, ососна Br +D HOCH HC-BrHN+Br CH 8. For the following compounds, assign the absolute configuration for those with chiral carbons and identify those that are NOT enantiomers HO C-C-OHY -CCIN 13CH3 HAN CH3 CH3 осі H-CH3 H2N+CH H O+COOH...
Could u please help me with numbers 1, 8, 9, 2, 3, 4 and also the...
Could u please help me with numbers 1, 8, 9, 2, 3, 4 and also
the one under 4 numbered 1. thanks in advance
1. Which of the Fischer projections correctly depicts the following compound? To do this problem, first determine R/ configuration of the compound in question, then do same for a, b, c, d. There could be an easier way. нон ң он CHCH но н @ CH (6) CH (©) CH (@ CH нон нонн ньоннон но...
A. Which of the following Newman projections would represent the least stable conformer of 2,2,3....
PLEASE HELP WITH ALL.
A. Which of the following Newman projections would represent the least stable conformer of 2,2,3.3-tetramethylbutane, looking down the 2,3 bond? H3C H3C H3C H3C CH3 b) CH3 H3C e) a) c) CH3 H3C CH3 CH CH3 CH о он B. which one of the following compounds would be chiral? Br он о он a) но HO O он HO C C. which of the following could potentially be used to distinguish between enantiomers? b) NMR c)...
carton 2 in the following molecule 20. What are the configurations around the Carbon 2 CON=s CW -R Carbon 1 a. Carbon 1 has an Sconfiguration, and Carbon 2 has an Sconfiguration. (b) Only Carbon 2 is chiral, and it has an Sconfiguration. c. Carbon 1 has an Sconfiguration, and Carbon 2 has an R configuration. Carbon 1 has an R configuration, and Carbon 2 has an Sconfiguration. Carbon 1 has an R configuration, and Carbon 2 has an R...
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...
1. Draw the (major) organic products of the following reactions: HNO3 H2SO4 HN (CH3)3CBr AlBr3 FeBr3 Br Sort the following molecules by their reactivity toward electrophilic aromatic substitution (1-most reactive, 4 2. least reactive): NH2 so,H Place either the letter A or C below the following compounds to indicate whether each of them are achiral (A) or chiral (C) 3. но Cl Determine the configuration (R or S) for each stereocenter in the following compounds: 4. Cl Cl NH2 но...
Key terms: chiral center, enantiomers, diasteriomers, meso compound, racemic mixture Part 1 - Make models of each of the following and give both perspective and Fischer formulas for all possible isomers and label each as chiral or achiral. Where applicable, specify as R or S each steroisomer and clearly label paint of enantimers, diasteromers and meso compounds a) The simplest amino acid glycine b) The second simplest alpha amino acid alanine c) Monosaccharide tetrose, CH_2(OH)-CH(OH)-CH(OH)-CHO d) 2, 3-Di-bromobutanes. e) 1,...
1.) Name the following compounds including stereochemistry. + Br 2.) Assign configurations to each of the chiral centers and circle the stereochemical relationship of the two compounds shown below in Fischer notation? CH3 C2H5 Br- H CH HCI Brt CzH5 A) enantiomers. B) diastereomers - C) constitutional isomers- D) cis/trans - isomers E) meso - same structure CH3 3.) Draw the structure of the meso form of 1,3-dichlorocyclopentane. Take particular care to indicate three-dimensional stereochemical detail properly. -
4,5,6
4. (1 pt.) Name the following compounds. Assign R S for chiral center and use E Z to describe double bond. 5. (1 pt.) How many tetrahedral stereocenters (chiral centers) are there in the molecule shown below. Mark each one with an asterisk. B. How many configurational isomers total are possible for this structure? A Number of tetrahedral stereocenters B. Total number of configurational isomers 6. (1 pt.) Identify all molecules that are chiral and the ones that are...
1. For each pair, circle the molecule with the lower pK and provide a brief explanation for your choice. wale wabon ---- 2. For each molecule, draw the two possible chair conformers and circle the preferred conformer. a) cis-1,3-dimethylcyclohexane trans-1,4-dimethylcyclohexane 3. Draw all distinct isomers of dimethylcyclopropane and show the relationship as enantiomer, diastereomer or meso. 4. In each of the following pairs of compounds one is chiral and the other achiral, Circle the chiral compound in each. a) CH,CHCH=CH...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers and meso compounds. II) Assign the absolute configuration of chiral carbons in each molecule OCH3 HO+Br HS+CN H2N-CH3 HOSH Он HO+CH3 н OCH3 Сн, ососна Br +D HOCH HC-BrHN+Br CH 8. For the following compounds, assign the absolute configuration for those with chiral carbons and identify those that are NOT enantiomers HO C-C-OHY -CCIN 13CH3 HAN CH3 CH3 осі H-CH3 H2N+CH H O+COOH...
Could u please help me with numbers 1, 8, 9, 2, 3, 4 and also
the one under 4 numbered 1. thanks in advance
1. Which of the Fischer projections correctly depicts the following compound? To do this problem, first determine R/ configuration of the compound in question, then do same for a, b, c, d. There could be an easier way. нон ң он CHCH но н @ CH (6) CH (©) CH (@ CH нон нонн ньоннон но...
PLEASE HELP WITH ALL.
A. Which of the following Newman projections would represent the least stable conformer of 2,2,3.3-tetramethylbutane, looking down the 2,3 bond? H3C H3C H3C H3C CH3 b) CH3 H3C e) a) c) CH3 H3C CH3 CH CH3 CH о он B. which one of the following compounds would be chiral? Br он о он a) но HO O он HO C C. which of the following could potentially be used to distinguish between enantiomers? b) NMR c)...
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