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the enantiomeric excess for the following mixture of enantiomers A and B (5.12D)? 11. (1 point)...
11. Determine the absolute configuration of each asymmetric center in the following molecule CH2CH2CH2CH3 12. What...
11. Determine the absolute configuration of each asymmetric center in the following molecule CH2CH2CH2CH3 12. What is the enantiomeric composition of a mixture that has a specific rotation of +88 degrees and has an enantiomeric excess of 40%. What are specific rotations of each enantiomer? 13. Determine if each of the following pairs of compounds represent enantiomers, diastereomers, constitutional isomers, or two molecules of the same compound CH H+CH н-н H -Br BH CHE
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess....
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess. If R-3-bromo-2- methylhexane is -80 degrees, would a polarimetry reading of the mixture in this problem rotate light (3) clockwise (CW) or counterclockwise (CC) (8) Br Br 15% 85% (this question is worth 9 points, not 8 as stated in the picture) 1. determine enantiomeric excess (your answer should be a number) 2. determine whether excess is S or R. 3. Does the mixture...
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...
QUESTION 11 11. What is the enantiomeric excess of a mixture containing 6.0 g of (-)-glyceraldehyde...
QUESTION 11 11. What is the enantiomeric excess of a mixture containing 6.0 g of (-)-glyceraldehyde and 2.0 of (+)-glyceraldehyde? A) 25% B) 50% C) 60% D) 75% . on > QUESTION 12 Al identical
A mixture of equal amounts of two enantiomers ____. A) is optically inactive B) is called...
A mixture of equal amounts of two enantiomers ____. A) is optically inactive B) is called a racemic mixture C) implies that the enantiomers are meso forms D) both A and B E) none of the above Label each asymmetric carbon in the compound below as R or S.
I have completed some answers! I just really really need help with the rest! I am...
I have completed some answers! I just really really need help
with the rest! I am so lost! please help me, if you can!
What information do you need? Can you see the pictures that I
posted?
#2-6 are using the FIGURE from question #2
#7-8 go together and uses #7 FIGURE
#9-12 uses #9"s FIGURE but #11 and #12 compares the two FIGURES
from #7	
#13 and 14 are together
# 15 and # 16 are their own problems...
c. If a sample of alitame has an 44% enantiomeric excess with respect to the D-enantiomer,...
c. If a sample of alitame has an 44% enantiomeric excess with respect to the D-enantiomer, what are the percentages of each enantiomer in solution? (5 pts) d. Assign pka values for at least two functional groups in the compound above. (4 pts) 3. Draw skeletal structures for any two trans isomers for a cyclopentane possessing the formula C7H14. (4 pts) 4. Provide structures for the following molecules based on the given IUPAC nomenclature using "sawhorse" or wedge-based skeletal structures....
5. Assign R or S configuration to each indicated chirality center (carbon A and B) in...
5. Assign R or S configuration to each indicated chirality center (carbon A and B) in the following molecule (vitamin C). Which of the following assignments is correct B но но OH но H se A a. carbon A (S); carbon B (R) b. carbon A (R); carbon B (R) c. carbon A (R); carbon B (S) d. carbon A (S); carbon B (S) 6. Which of the following statement is NOT correct? a Constitutional isomers are compounds whose atoms...
Write the product/s in each of the following reactions. If a racemic mixture is a product of the reaction, write struct...
Write the product/s in each of the following reactions. If a racemic mixture is a product of the reaction, write structure of both enantiomers. Assign absolute configuration (R or S) of the starting compounds and final 1 compounds in a case they possess a stereogenic center. (2.5 x 10 25 points) pyridine = v a. - ONa ? Pyridines byрroduct b. S-Ci NH2 (RZ-pent-3-en-2-ol pyridine excess с. FC CF3 NaCCCH он pyridine d. Вгz. Но 1 mol NaOH cis-pent-2-ene е....
6. Draw the two chair conformations for cis-1-sec-butyl-2-ethylcyclohexane. Predict the most stable conformer and draw the...
6. Draw the two chair conformations for cis-1-sec-butyl-2-ethylcyclohexane. Predict the most stable conformer and draw the corresponding Newman projection (4 pts) 7. Convert the following compounds from their 3D structure to their Fisher projection and vice-versa (4 pts) НО Br HO co₂me HN CI CO2Me НО -СІ НЕОН СН2ОН 5| Page 8. The specific rotation for (R)-methyl 2-chloro-2,3-dihydroxypropanoate is -126.7. A student prepare a sample of methyl 2-chloro-2,3-dihydroxypropanoate enantiomers that shows a specific rotation of +89.6, (a) Calculate the percent...
11. Determine the absolute configuration of each asymmetric center in the following molecule CH2CH2CH2CH3 12. What is the enantiomeric composition of a mixture that has a specific rotation of +88 degrees and has an enantiomeric excess of 40%. What are specific rotations of each enantiomer? 13. Determine if each of the following pairs of compounds represent enantiomers, diastereomers, constitutional isomers, or two molecules of the same compound CH H+CH н-н H -Br BH CHE
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess. If R-3-bromo-2- methylhexane is -80 degrees, would a polarimetry reading of the mixture in this problem rotate light (3) clockwise (CW) or counterclockwise (CC) (8) Br Br 15% 85% (this question is worth 9 points, not 8 as stated in the picture) 1. determine enantiomeric excess (your answer should be a number) 2. determine whether excess is S or R. 3. Does the mixture...
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...
QUESTION 11 11. What is the enantiomeric excess of a mixture containing 6.0 g of (-)-glyceraldehyde and 2.0 of (+)-glyceraldehyde? A) 25% B) 50% C) 60% D) 75% . on > QUESTION 12 Al identical
A mixture of equal amounts of two enantiomers ____. A) is optically inactive B) is called a racemic mixture C) implies that the enantiomers are meso forms D) both A and B E) none of the above Label each asymmetric carbon in the compound below as R or S.
I have completed some answers! I just really really need help
with the rest! I am so lost! please help me, if you can!
What information do you need? Can you see the pictures that I
posted?
#2-6 are using the FIGURE from question #2
#7-8 go together and uses #7 FIGURE
#9-12 uses #9"s FIGURE but #11 and #12 compares the two FIGURES
from #7	
#13 and 14 are together
# 15 and # 16 are their own problems...
c. If a sample of alitame has an 44% enantiomeric excess with respect to the D-enantiomer, what are the percentages of each enantiomer in solution? (5 pts) d. Assign pka values for at least two functional groups in the compound above. (4 pts) 3. Draw skeletal structures for any two trans isomers for a cyclopentane possessing the formula C7H14. (4 pts) 4. Provide structures for the following molecules based on the given IUPAC nomenclature using "sawhorse" or wedge-based skeletal structures....
5. Assign R or S configuration to each indicated chirality center (carbon A and B) in the following molecule (vitamin C). Which of the following assignments is correct B но но OH но H se A a. carbon A (S); carbon B (R) b. carbon A (R); carbon B (R) c. carbon A (R); carbon B (S) d. carbon A (S); carbon B (S) 6. Which of the following statement is NOT correct? a Constitutional isomers are compounds whose atoms...
Write the product/s in each of the following reactions. If a racemic mixture is a product of the reaction, write structure of both enantiomers. Assign absolute configuration (R or S) of the starting compounds and final 1 compounds in a case they possess a stereogenic center. (2.5 x 10 25 points) pyridine = v a. - ONa ? Pyridines byрroduct b. S-Ci NH2 (RZ-pent-3-en-2-ol pyridine excess с. FC CF3 NaCCCH он pyridine d. Вгz. Но 1 mol NaOH cis-pent-2-ene е....
6. Draw the two chair conformations for cis-1-sec-butyl-2-ethylcyclohexane. Predict the most stable conformer and draw the corresponding Newman projection (4 pts) 7. Convert the following compounds from their 3D structure to their Fisher projection and vice-versa (4 pts) НО Br HO co₂me HN CI CO2Me НО -СІ НЕОН СН2ОН 5| Page 8. The specific rotation for (R)-methyl 2-chloro-2,3-dihydroxypropanoate is -126.7. A student prepare a sample of methyl 2-chloro-2,3-dihydroxypropanoate enantiomers that shows a specific rotation of +89.6, (a) Calculate the percent...
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