Answered: Calculate the specific rotation of…

Calculate the specific rotation of each isomer in a mixture containing 10 mL (0.10M) of the S enantiomer and 30 mL (0.10M) of R enantiomer . Given the specific rotation of mixture =+4.8

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter92: Polarimetry

Section: Chapter Questions

Problem 3P

See similar textbooks

Related questions

Q: A solution prepared by mixing 10 mL of a 0.10 M solution of the R enantiomer of a compound and 30 mL…

A: Given: Volume of R enantiomer = 10 mL Molarity of R enantiomer = 0.10 M Volume of S enantiomer = 30…

Q: mixture of enantiomers has a specific rotation of -25 degrees when its pure enantiomers have a…

Q: Use compounds D and E shown below to answer this question. What would be the observed rotation of a…

Q: If a solution of a compound (50.0 g/100 mL of solution) has a measured rotation of +150 in a 2 dm…

Q: (+)-Tartaric acid has a specific rotation of +12.0°. Calculate the specific rotation of a mixture of…

A: Optical purity is calculated by using below formula, In…

Q: =rcise 2 Calculate the specific rotation of a compound of molecular weight 150 gm/mole if a 1.0M…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: The pure D-form of a compound has a specific rotation (D line of sodium, 20° C) of +24°, whereas the…

A: First of all we need to calculate the enantiomeric excess by substracting minor from the major…

Q: An aqueous solution containing 10 g of an optically pure compound was diluted to 500 mL with water…

A: The concentration of the compound in g/mL in pure solution is calculated as follows:

Q: 3. (+)-Tartaric acid has a specific rotation of +12.0°. Calculate the specific rotation of a mixture…

A: (3)(a)Given thatspecific rotation of (+)-Tartaric acid =+12.0°=pure+⇒68% , -⇒32%

Q: Consider a solution that contains 69.0% R isomer and 31.0% S isomer. If the observed specific…

A: The solution contains 69.0% of R isomer and 31.0 % of S isomer. Here R isomer is in excess than S…

Q: A mixture of enantiomers is tested to be 76% ee (enantiomeric excess) with an observed rotation-10.…

Q: Calculate the specific rotation of a substance that is dissolved in a solvent (0.4 g/mL) and that…

A: We will calculate the specific rotation of a substance that is dissolved in a solvent ( 0,4 g/mL)…

Q: Draw the ring-flip isomer of the molecule. (b) Show which of the two is favored in the equilibrium…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Consider a solution that contains 84.0% R isomer and 16.0% S isomer. If the observed specific…

A: Given, A solution contain 84.0% R isomer and 16.0% S isomer. The observed specific rotation is -37.…

Q: The specific rotation of optically pure (R,R)-tartaric acid is +12.4. If a mixture of (R,R)- and…

Q: 8. Consider the structure of Quinine, an antimalarial drug below with an optical rotation of -165°.…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 2. A 1.00 g sample of X and Y enantiomers has a % optical purity of 65.5. What is the mass % of each…

A: koi

Q: A mixture has 3 times as much (S)-2-butanol as (R)-2-butanol. If the specific rotation of pure…

A: The question is based on the concept of stereochemistry and optical rotation. we have to calculate…

Q: Considering the observed rotation value indicated in the table, and considering that the measurement…

Q: Consider a solution that contains 66.7 % of the R isomer (specific rotation = -46 °) and 33.3% of…

A: The specific rotation of the R-isomer is = -46 degree The enantiomeric excess of the R-isomer is =…

Q: When one of the enantiomers of butan-2-ol is placed in a polarimeter, the observed rotation is 4.05°…

A: Given, The mass of butan-2-ol is 6.0g. The volume of butan-2-ol is 40.0mL. The length of the…

Q: A 0.100 M solution of an enantiomerically pure chiral compound D has an observed rotation of +0.22…

A: Since you have asked multiple questions we will some the first one for you, if you want answer to a…

Q: 1. Calculate the observed rotation, a one would measure for a 20.0% (m/v) D-glucose solution if a 2…

A: We have find out the observed rotation of D- glucose and L- glucose solution. Note -As per our…

Q: -A1.50g sample of conine sample was dissolved in 10.0 ml of ethanol and placed in a sample cell with…

Q: Calculate the specific rotation of the oraginc liquid, if the sample cell that was used was 100nm.

A: GIVEN THAT---- 10g og organic sovent dilute in 10 ml of volumertic flask optical rotation…

Q: In this chapter, we saw that amino acids typically have a single chiral center and are therefore…

A: Since you posted multiple question, we answered the first one. If a molecule is superimposable on…

Q: Calculate the specific rotations of the following samples taken at 25 °C using the sodium D…

A: The specific rotation 'α' of an optically active substance at a particular temperature and for a…

Q: A unknown sample gave a specific rotation of 0 when placed in a polarimeter. What conclusion(s) can…

A: In organic chemistry the Specific rotation means it is the property of a chiral chemical compound.

Q: What% of the enantiomer (R) contains a mixture with an 80% enantiomeric excess in the enantiomer S)?…

A: For a given mixture containing both (R) and (S) isomers: Enantiomeric Excess = %(R)~%(S) Also,…

Q: The (-) enantiomer of a compound has a specific rotation of [a] = 123°. What rotation, a, will be…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: iii) Calculate the specific rotation of each enantiomer in a mixture containing 10 mL (0.10 M) of…

Q: The specific rotation of a sample of mandelic acid [PhCH(OH)CO2H] is +12.5° and of pure R-(+)-…

Q: A 1.62 M solution of (R)-2-butanol is mixed with an equal volume of a 0.810 M solution of racemic…

A: A numerical problem based on concentration terms, which is to be accomplished.

Q: which is true if a mixture of enantiomer with a specific rotation of +2 if specific rotation of…

Q: Calculate the e.e. and the specific rotation of a mixture containing 6.0 g of (+)@butan@2@ol and 4.0…

A: Enantiomeric excess (ee) can be defined as a measure of purity which is used for chiral substances.…

Q: @Calculate (a) the optical purity of a mixture of 3.5 g (-) - menthol and 2.7 g(+) - menthol. (b)…

Q: A mixture has 3 times as much (S)-2-butanol as (R)-2-butanol. If the specific rotation of pure…

Q: 2. A sample of naproxen (the (S)-enantiomer is the active ingredient in Alleve) was found to have an…

A: Given data is, Observed optical rotation of (S)-enantiomer=+45.50 Optical rotation of pure…

Q: Sx2 reactions involving chiral electrophiles usually proceed with: A) inversion of configuration B)…

A: Interpretation - In the SN2 reaction involving chiral electrophile usually proceed with -…

Q: The following compound has a chiral centre. Explain why it has four stereoisomers.…

A: The organic compound has 1 chiral center and 1 double bond.

Q: If we mix 20cm^3 sucrose of 250g/dm^3 mass concetration with 20cm^3 water, what will be the light…

A: Degree of light rotation can be calculated using the specific rotation and concentration.

Q: The specific rotation of (S)-2-iodobutane is +15.90°. Determine the percentage composition of a…

A: Given Specific rotation of mixture = -7.95o The specific rotation of (S)-2-iodobutane , r1 =…

Q: B. The specific rotation of a pure substance is -5.90°. What is the percentage of this isomer in a…

A: Rotation of pure substance, S = - 5.90◦ Observed specific rotation = - 2.95◦

Q: (- )- Mandelic acid has a specific rotation of - 158°. What would be the specific rotation of a…

A: Given: (-)-Mandelic acid has a specific rotation of -158o. And the mixture contains 50% of…

Q: pure (S) enantiomer has a specific rotation of -63deg, what is the specific rotation of the mixture…

A: chirality

Q: A 1.50 g sample of coniine, the toxic extract of poison hemlock, was dissolved in 10.0 mL of ethanol…

Q: Calculate the specific rotation of the (S)-ibuprofen sample and (R)-ibuprofen sample based on the…

A: Given, Observed rotation of (S) - ibuprofen = + 0.54 degree Observed rotation of (R) - ibuprofen = +…

Q: Find the optical purity of a sample that has an observed rotation of +4.5o and a specific rotation…

A: In this question, we will determine the optical purity ( also called percentage of enantiomeric…

Q: Please determine the enantiomeric excess of a mixture, 68% of one enantiomer and 32% of the other…

Concept explainers

Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.

Question

100%

Calculate the specific rotation of each isomer in a mixture containing 10 mL (0.10M) of the S enantiomer and 30 mL (0.10M) of R enantiomer . Given the specific rotation of mixture =+4.8

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

A solution prepared by mixing 10 mL of a 0.10 M solution of the R enantiomer of a compound and 30 mL of a 0.10 M solution of the S enantiomer was found to have an observed specific rotation of +4.8. What isthe specific rotation of each of the enantiomers? (Hint: mL * M = millimole, abbreviated as mmol)
b) A synthetic sample of MSG (conc 0.350 g/mL) is found to be a mixture of two enantiomers. What is the percentage of each enantiomer in the sample if the experimental rotation of the sample is found to be -2.15°?
If a pure R isomer has a specific rotation of –126.0°, and a sample contains 70.0% of the R isomer and 30.0% of its enantiomer, what is the observed specific rotation of the mixture? [a] =
The specific rotation of compound X is +10.2°. A mixture of compound X and its enantiomer are placed in the polarimeter and the observed rotation is +2.3°. Find the enantiomeric excess and determine which enantiomer is in excess (+ or -).
A mixture of enantiomers is tested to be 76% ee (enantiomeric excess) with an observed rotation-10. There is a larger amount of S enantiomers than R ones in the mixture. What is the observed rotation of another mixture with 61% of R enantiomers? Give your answer with 1 decimal point. Answer.
3. A solution of enantiomers has an observed specific rotation of +8.0°ml/g dm and pure (+) enantiomer has a specific rotation of +12'ml/g dm. Determine the optical purity and ratio of the enantiomers in the mixture.
The following compound has a chiral centre. Explain why it has four stereoisomers. H3CC(Cl)HCH=CHCH2CH3. And calculate the specific rotation of each enantiomer in a mixture containing 10 mL (0.10 M) of the S enantiomer and 30 mL(0.10M) of the R enantiomer. Given the specific rotation of mixture=+4.8
If the sample of the pure R enantiomer of a molecule has a specific rotation of -40 degrees and your mixture of that molecule has an 82% ee S, what is the observed specific rotation of your sample?
An attempt at synthesizing a certain optically-active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of +14.2°. If it is known that the specific rotation of the R enantiomer is -31.0°, determine the percentage of each isomer in the mixture. R enantiomer: % S enantiomer: %
The specific rotation for a pure enantiomer is known to be -45 g- mL-1 dm-1. A sample containing both enantiomers is found to have an observed rotation of -0.50° in a 1dm tube at a concentration of 4.2g/100 mL. What is the optical purity of the sample? O a. 20.6% Ob. 30.8% Oc. 26.4% O d. 36.5%
If a mixture of enantiomers has a specific rotation of -25 degrees when its pure enantiomers have a specific rotation of ± 30 degrees, what is the percent composition of the major enantiomer? Round to the nearest whole number. need answer fast i'll rate up
What% of the enantiomer (R) contains a mixture with an 80% enantiomeric excess in the enantiomer S)? Explain your answer.