1) The specific rotation of (R) -2-bromooctane is -36 . What is the percentage composition of a mixture of enantiomers of 2-bromooctane whose rotation is +12 ?
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Q: The specific Rotation of (R)-carvone (at 20 deg) is -61. A chemist prepare a mixture of (r)-carvone…
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Q: 8. The specific rotation of (S)-carvone (at +20°C) is +61. A chemist prepared a mixture of…
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A: Solution Percentage of R(-) enantiomers : 26% Percentage of S(+) enantiomers : 74%
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Q: The specific rotation of (S)-Carvone is +61° while the specifiC rotation of (R)-Carvone is -61°. If…
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Q: What is the percentage of the R enantiomer in a sample of limonene that has a specific rotation of…
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Q: The specific rotation of optically pure adrenaline in water at 25°C is -53. If a chemist has a…
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Q: 2. The specific rotation of (S)-carvone (at 20°C) is +61. A chemist prepared a mixture of…
A: Given -> Specific rotation of (S)-carvone = +61 Observed rotation of mixture =-55°
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Q: 3. The specific rotation of (S)-carvone is +61°. A chemist prepared a mixture of (R)-carvone and its…
A: Given that specific rotation of (S)-carvone = + 61° (S)-carvone and (R)-carvone are enantiomers…
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A: Data given: Observed specific rotation of mixture, [α]obs = +14.2° Specific rotation of…
Q: What is the percentage of the S enantiomer in a sample of carvone that has a specific rotation of…
A: We have to calculate the % of S enantiomer.
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- The specific rotation of (S)-carvone (at 20 degrees) is +61. A chemist prepared a mixture of (R)-carvone and its enantiomer, and this mixture had an observed rotation of -55. (a) What is the specific rotation of (R)-carvone at 20 degrees? (b) What percentage of the mixture is (S)- carvone? Choose from the following options. 1. 90% (S)-carvone and 10% (R) 2. 10% (S)-carvone and 90% (R) 3. 95% (S)-carvone and 5% (R) 4. 5% (S)- carvone and 95% (R)The specific rotation of optically pure adrenaline in water at 25°C is -53. If a chemist has a sample of synthetic adrenaline with a specific rotation of -45, calculate the enantiomeric excess.The specific rotation of (R)carvone is -61o. A chemist prepared a mixture of (R)-carvone and (S)-carvone, and the mixture had an observed rotation of -47o. What is the % enantiomeric excess (ee) of the mixture?
- 8. The specific rotation of (S)-carvone (at +20°C) is +61. A chemist prepared a mixture of (R)-carvone and its enantiomer, and this mixture had an observed rotation of -55°. (a) What is the specific rotation of (R)-carvone at 20°C? (b) Calculate the % ee of this mixture. (c) What percentage of the mixture is (S)-carvone?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] =5:51 Draw examples of the following: (a) A meso compound with the formula C8H18 (b) A meso compound with the formula C9H20 (c) A compound with two chirality centers, one R and the other S
- 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)8. Identify the stereochemical relationship between the structural pairs shown below as (A) identical structures that are not meso; (B) identical structures that ARE meso; (C) structures that are enantiomers; or (D) structures that are diastereomers. a) b) H3C c) CH3 Br H. CH3 Br Br CH3 H. CI Holl H Cill Cl- CH3 Br H. CI CH3 HO. H. H3C Cl H3C- H- H. CH3 Cl a) b) c) 9. Identify the stereochemical relationship between the structural pairs shown below as (A) identical structures that are not meso; (B) identical structures that ARE meso; (C) structures that are enantiomers; or (D) structures that are diastereomers. a) b) c) CH2CH3 NH2 HO CH3 H3C. CH3 Cl HO H;C CH2CH3 F. F H;C. CI H H,N -CH3 CH3 NH2 H3C Br H2N C1 H3C CH3 CH3 H;CH,C- Cl F H. H Br CH,CH3 CH3 a) b) c)The absolute value of the specific rotation of an enantiomer 2-butanol is 13.5o. What is the percentage of each enantiomer (R and S) in a mixture that has a specific rotation of -8.5o? The (R)-enantiomer is levorotatory. Be clear and detailed.
- Glutamic acid is a naturally occurring amino acid and isthe precursor to the food additive MSG (monosodium glutamate)which can cause allergic reactions in some people. If naturally occurring L glutamic acid has a melting point of 205 C and an optical rotation of + 31.5, what is the melting point and optical rotation of its enantiomer?A sample of limonene has a specific rotation of +75.9°. R-(+)-limonene [a]p = +125.6° and S-(-)-limonene [a]p = -122.1°. What is the percent enantiomercic excess (% ee)? % ee: What is the molecular composition of this same sample? percent of S isomer: percent of R isomer:What is the percentage of the s enantiomer in a sample of carvone that has a specific rotation of +14°, R carvone is -61°.