Homework Answers
15)
S is present in smaller amount
%ee = 100 - 2*S
= 100 - 2*17
= 100 - 34
= 66
Answer: 66
16)
Since there are equal amount of R and S.
The net rotation would be 0
Answer: 0
Add Answer to:
15, 16
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ВІ 15.03 pts.) If a sample contains 83% of...
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...
need help with 15-17 For Problems 15-17, consider (R)-carvone (below), -61. which has a specific rotation...
need help with 15-17
For Problems 15-17, consider (R)-carvone (below), -61. which has a specific rotation of [a] o CH3 (t 4)S H2C CH3 15. What is the % ee of a sample of carvone that exhibits a specific rotation of -40? (1 pt) 16. What is the specific rotation of a sample of carvone that contains a 50/50 mixture of the R and S enantiomers? (1 pt) 17. If a sample of carvone gives a specific rotation of +48,...
6. 104 pts. What alkene gives the product shown after reaction first with ozone and then...
6. 104 pts. What alkene gives the product shown after reaction first with ozone and then with dimethyl methyl sulfide? 2. [03 pts.] What is the maximum number of water molecules that, in theory, the following molecule could hydrogen bond with? 0:2 0:2 . [03 pts.) How many carbons are in planar double bond system? poleg omegn (8 0 7 02 to 4 Tor 2 16. [03 pts.] What is the specific rotation of a sample of carvone that is...
10. What is the specific rotation of a sample of carvone that is an equal mixture...
10. What is the specific rotation of a sample of carvone that is an equal mixture of the R and S enantiomers? (R)- carvone has a specific rotation of -61°. a. -61° b. 64° d. +61° c. 0° 11. What is the percentage of the R enantiomer in a sample of carvone that has a specific rotation of 30°, given that the specific rotation of (R)-carvone is -61°? (2 pt ... this is challenging.) a. 26% b. 51% c. 49%...
Question 14 1 pts A mixture of enantiomers contains 84% of the R enantiomer and 16%...
Question 14 1 pts A mixture of enantiomers contains 84% of the R enantiomer and 16% of the Senantiomer. What is the enantiomeric excess?
optical activity problems.. please show all steps i dont understand You have a sample (Sample X)...
optical activity problems.. please show all steps i dont
understand
You have a sample (Sample X) which is a mixture of +/- Carvone. The solution was made by dissolving 4.50 g of the sample in enough methanol to bring the volume of solution to 10,0 ml. Some of the solution is placed in a 100 cm polarimeter cell and its optical rotation is measured at 25°C using light of the sodium D line wavelength (589.6 nm). The observed rotation is...
A mixture of enantiomers contains 84% of the R enantiomer and 16% of the Senantiomer. What...
A mixture of enantiomers contains 84% of the R enantiomer and 16% of the Senantiomer. What is the enantiomeric excess? HTML Editor * BI А Ix 3 3 3 3 3 x?
3. For the structure below determine the number of stereocenters. Determine the number of stereoisomers for...
3. For the structure below determine the number of stereocenters. Determine the number of stereoisomers for the structure and draw all of them? Determine the enantiomers and which are diasteriomers. Determine the absolute configuration for both for both enantiomers. 10 pts 4. What would be the observed optical rotation of a sample of 3.2 R of pure (.) - 3-chloropentanoic acid with a specific rotation of 30.0 degrees in 100 ml of water, measured in 25 cm cuvette. 4 pts...
1. Percent Enantiomerie Excess (ee) is given by the equation if in moless (The difference between Rand S isomers/su...
1. Percent Enantiomerie Excess (ee) is given by the equation if in moless (The difference between Rand S isomers/sum of R & S isomer) - 100. Thus, the sample prepared by Dr. Z. Evans in the PSB 340 Lab contained 12.8 moles of isomer and 3.2 moles of the S isomer. a. Which isomer is in excess in Dr. Evans product? 3.2 moles b. By how much: 12.8 - 3.2 x100 c. What is the percent ce? 2. Enantiomeric Excess...
Question 16 2 pts If I take a random sample of 100 Ames residents and record...
Question 16 2 pts If I take a random sample of 100 Ames residents and record the proportion who were unemployed, then took another sample and recorded the proportion who were unemployed, and continue to do this many times I could plot all the sample proportions on a histogram. This is what type of a distribution? O Population Distribution Sample Distribution Normal Distribution Sampling Distribution Question 17 2 pts A clinical trial is being ran to see if a new...
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...
need help with 15-17
For Problems 15-17, consider (R)-carvone (below), -61. which has a specific rotation of [a] o CH3 (t 4)S H2C CH3 15. What is the % ee of a sample of carvone that exhibits a specific rotation of -40? (1 pt) 16. What is the specific rotation of a sample of carvone that contains a 50/50 mixture of the R and S enantiomers? (1 pt) 17. If a sample of carvone gives a specific rotation of +48,...
6. 104 pts. What alkene gives the product shown after reaction first with ozone and then with dimethyl methyl sulfide? 2. [03 pts.] What is the maximum number of water molecules that, in theory, the following molecule could hydrogen bond with? 0:2 0:2 . [03 pts.) How many carbons are in planar double bond system? poleg omegn (8 0 7 02 to 4 Tor 2 16. [03 pts.] What is the specific rotation of a sample of carvone that is...
10. What is the specific rotation of a sample of carvone that is an equal mixture of the R and S enantiomers? (R)- carvone has a specific rotation of -61°. a. -61° b. 64° d. +61° c. 0° 11. What is the percentage of the R enantiomer in a sample of carvone that has a specific rotation of 30°, given that the specific rotation of (R)-carvone is -61°? (2 pt ... this is challenging.) a. 26% b. 51% c. 49%...
Question 14 1 pts A mixture of enantiomers contains 84% of the R enantiomer and 16% of the Senantiomer. What is the enantiomeric excess?
optical activity problems.. please show all steps i dont
understand
You have a sample (Sample X) which is a mixture of +/- Carvone. The solution was made by dissolving 4.50 g of the sample in enough methanol to bring the volume of solution to 10,0 ml. Some of the solution is placed in a 100 cm polarimeter cell and its optical rotation is measured at 25°C using light of the sodium D line wavelength (589.6 nm). The observed rotation is...
A mixture of enantiomers contains 84% of the R enantiomer and 16% of the Senantiomer. What is the enantiomeric excess? HTML Editor * BI А Ix 3 3 3 3 3 x?
3. For the structure below determine the number of stereocenters. Determine the number of stereoisomers for the structure and draw all of them? Determine the enantiomers and which are diasteriomers. Determine the absolute configuration for both for both enantiomers. 10 pts 4. What would be the observed optical rotation of a sample of 3.2 R of pure (.) - 3-chloropentanoic acid with a specific rotation of 30.0 degrees in 100 ml of water, measured in 25 cm cuvette. 4 pts...
1. Percent Enantiomerie Excess (ee) is given by the equation if in moless (The difference between Rand S isomers/sum of R & S isomer) - 100. Thus, the sample prepared by Dr. Z. Evans in the PSB 340 Lab contained 12.8 moles of isomer and 3.2 moles of the S isomer. a. Which isomer is in excess in Dr. Evans product? 3.2 moles b. By how much: 12.8 - 3.2 x100 c. What is the percent ce? 2. Enantiomeric Excess...
Question 16 2 pts If I take a random sample of 100 Ames residents and record the proportion who were unemployed, then took another sample and recorded the proportion who were unemployed, and continue to do this many times I could plot all the sample proportions on a histogram. This is what type of a distribution? O Population Distribution Sample Distribution Normal Distribution Sampling Distribution Question 17 2 pts A clinical trial is being ran to see if a new...
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