The specific rotation of vitamin B7 in water (at 22°C) is +92. A chemist prepared a mixture of vitamin B7 and its enantiomer, and this mixture had a specific rotation of +12. Calculate the % ee of this mixture. % ee = i
Q: The specific rotation of a pure substance is -5.90°. What is the percentage of this isomer in a…
A: The optical purity is calculated by the formula, Optical purity=observed specific rotationspecific…
Q: The specific rotation of vitamin B7 in water at (22 °C) is +92. A Chemist prepared a mixture of…
A: The observed specific rotation of an enantiomeric mixture is related to the ee as, =>% ee =…
Q: the specific rotation of sucrose is 66.5(°cm^3)/(gdm), what is its molar rotation? Molar mass of…
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Q: #3 & 4
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
Q: When 0.247 g of monosodium glutamate (MSG) is dissolved in 10.0 mL of water and placed in a sample…
A: We are authorized to answer one question at a time, since you have not mentioned which question you…
Q: 14. The specific rotation of ephedrine in ethanol (at 20 °C) is -6.3. A chemist prepared a mixture…
A: The rotations of the two enantiomer cancel each other, hence the rotation of the mixture will be…
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Q: The specific rotation, [a]p, for sucrose is +67. What is the observed rotation for a solution of…
A: The specific rotation will be, α = [α]obsc x lwhere c is concentration in g/mL l is the path…
Q: 8. The specific rotation of (S)-carvone (at +20°C) is +61. A chemist prepared a mixture of…
A: Given that, at 20°C The specific rotation of the (s)- carvone is +61. The specific rotation of the…
Q: to uoitetor orlioogadirw 3. The specific rotation of pure (-) cholesterol is -39° g' mLl dm!. What…
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Q: #3 ....Please write out...thank you
A: Degree of unsaturation can be calculated by using the given below formula.
Q: An attempt at synthesizing a certain optically-active compound resulted in a mixture of its…
A: Solution Percentage of R(-) enantiomers : 26% Percentage of S(+) enantiomers : 74%
Q: 6. When one of the enantiomers of 2-hexanol is placed in a polarimeter, a rotation of 8,100 is…
A: The optical rotation of a chiral substance usually is reported as a specific rotation αα is the…
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Q: A sample of synthesized sucrose from organic chemistry lab was tested, and the specific rotation of…
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Q: A certain compound has a specific rotation of -43.2o (c = 5, toluene). What is the observed rotation…
A: Given: Mass of the sample, m = 1.24 g Concentration of the sample, C = 1.00 g/mL…
Q: The specific rotation, [a]p, for sucrose is +67. What is the observed rotation for a solution of…
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Q: the specific rotation of sucrose is 66.5(°cm^3)/(gdm), what is its molar rotation? Mr sucrose is 342
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Q: How can you decide whether an observed rotation of a solution of an optically active compound is…
A: Optically active compound: Some chemical compounds have the capability to rotate the plane-polarized…
Q: Label the four chiral centers in amoxicillin, which belongs to the family of semisynthetic…
A: Chiral centers are the carbons that have all 4 different attached groups.
Q: The specific rotation of a-d-glucose is +112.2. Q.) When a-d-glucose is dissolved in water, the…
A: Interpretation: The specific rotation of α-D-glucose is +122.2. When α-D-glucose is dissolved in…
Q: The specific rotation of L-dopa in water (at 15°C) is -39.5. A chemist prepared a mixture of L-dopa…
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Q: A sample mixture containing the made-up enantiomers (R)-(+)-Nenanoic acid and (S)-(-)-Nenanoic acid…
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Q: Calculate the degree of unsaturation in each of the following formulas (a) Cholesterol, C27H46o (b)…
A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…
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Q: The specific rotation of (S)-2-iodobutane is +15.90°. Draw the structure of (S)-2-iodobutane.
A: Given The specific rotation of (S)-2-iodobutane is +15.90°. Draw the structure of (S)-2-iodobutane.
Q: The specific rotation for (-)-methylphenidate is -38° mL g¹ dm¹. Path length of the polarimeter is 1…
A: Given , Specific rotation of (−)-methylphenidate = - 38°mLg dm path length of polarimeter = 1 dm
Q: d) The literature specific rotation of (d)-epinephrine is 53 degrees. You measure the rotation of a…
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Q: The specific rotation of vitamin B7 in water (at 22°C) is +92. A chemist prepared a mixture of…
A: We have given that specific rotation (α) of pure Vitamin B7 = + 92 And Observed specific rotation…
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Q: For sucrose, C12H22011, [a]B = +66.5 deg. (a) Calculate the molecular rotation of sucrose. (b)…
A: #(b): Given the specific rotation, αD20 = + 66.5 degree path length, l = 10 cm Concentration, C =…
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Q: The specific rotation, [a]p, for (-)-malic acid is -27. What is the observed rotation for a solution…
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Q: The specific rotation, [a]D> for (-)-2-butanol is +14. What is the observed rotation for a solution…
A: As your question has multiple subparts so we will solve only 1st two subparts for you if you want…
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°
Q: 1) The major component of orange oil is limonene which has a specific rotation of +115.5°. Compare…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
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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Q: The specific rotation for (-)-methylphenidate is -38° mL g¹ dm¯1. Path length of the polarimeter is…
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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: 3. (+)-Tartaric acid has a specific rotation of +12.0°. Calculate the specific rotation of a mixture…
A: Given: Specific rotation of tartaric acid is +12.0o. % of (+)-tartaric acid = 68 %. And % of…
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Q: 1. The specific rotation of (S)-1-amino-1-phenylethane is-30.0 deg mlg dm, la, =-30.0 deg ml. gdm…
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Q: [References] The specific rotation, [a]p, for sucrose is +67. What is the observed rotation for a…
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Q: Pure cholesterol has a specific rotation of −32. A sample of cholesterolprepared in the lab had a…
A: Enantiomeric excess is the excess of one enantiomer over the other in a mixture of enantiomers.
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- 1. When 0.247 g of monosodium glutamate (MSG) is dissolved in 10.0 mL of water and placed in a sample cell 10.0 cm in length, the observed rotation at 20°(using the D line of sodium) is +0.632°. Calculate the specific rotation of MSG. 2. When 0.095 g of cholesterol is dissolved in 1.00 mL of ether and placed in a sample cell 10.0 cm in length, the observed rotation at 20°C (using the D line of sodium) is -0.299°.Calculate the specific rotation of cholesterol.3. The specific rotation of L-dopa in water (at 15°C) is -39.5. A chemist prepared a mixture of L-dopa and its enantiomer, and this mixture had a specific rotation of -34. Calculate the % ee of this mixture. 4. The specific rotation of vitamin B7 in water (at 22°C) is +92. A chemist prepared a mixture of vitamin B7 and its enantiomer, and this mixture had a specific rotation of +18. Calculate the % ee of this mixture.The specific rotation of vitamin B7 in water (at 22°C) is +92. A chemist prepared a mixture of vitamin B7 and its enantiomer, and this mixture had a specific rotation of +18. Calculate the % ee of this mixture.If we measure the rotation angle of a sample in a polarimeter and it is zero, the sample….(1). It is a 1.00 M aqueous solution of a pure substance of rotational power exactly equal to 100.(2). It is optically inactive.(3). It is an equimolar mixture of enantiomers of the same compound.(4). It is a mixture of right-handed and left-handed substances.
- When 0.075g of penicillamine is dissolved in 10.0 mL of pyridine and placed in a sample cell 10.0 cm in length, the observed rotation at 20 degrees (using the D line of sodium) is -0.47 degrees. Calculate the specific rotation of penicillamine. a. (-0.47)/[(0.075g/mL) (1.00 dm)]= -6.3 b. (0.47)/[(0.075g/mL) (1.00 dm)]= 6.3 c. (-0.47)/[(0.0075g/mL) (1.00 dm)]= -63 d. (0.47)/[(0.0075g/mL) (1.00 dm)]= 63A 0.26 M solution of an enantiomerically pure chiral compound D has an observed rotation of +0.197° in a 1‑dm sample container. The molar mass of the compound is 132.3 g/mol. a. What is the specific rotation of D? b. What is the observed rotation if this solution is mixed with an equal volume of a solution that is 0.26 M in L, the enantiomer of D? c. What is the observed rotation if the solution of D is diluted with an equal volume of solvent?(+)-Tartaric acid has a specific rotation of +12.0°. Calculate the specific rotation of a mixture of 68% (+)@tartaric acid and 32% (-)@tartaric acid
- A sample mixture containing the made-up enantiomers (R)-(+)-Nenanoic acid and (S)-(-)-Nenanoic acid has an apparent specific rotation of +25.12° at 25 °C. This solution has an enantiomeric excess (EE) of 74.0%. Provide answers to the following questions 1.What percentage of the sample described above is (S)-(-)-Nenanoic acid? 2.What is the apparent specific rotation of a sample composed of 80.0% (R)-(+)-Nenanoic acid and 20.0% (S)-(-)-Nenanoic acid?The specific rotation (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. What is the specific rotation of (R)-carvone at 20°C?Construct a model of methane (CH4) using MolView and answer the following: Can it be superimposed on its mirror image? (Y/N) Does methane contain a plane of symmetry? (Y/N) Is methane chiral? (Y/N)
- 1. A solution of (S)-2-butanol (molar mass = 74.12) is observed to have a rotation in a 10 cm path length of +16.2 degrees. If the molar specific rotation of (S)-2-butanol is +135.2 degrees, what is the concentration of (S)-2-butanol in grams per liter? 2. After an attempt to resolve a racemate into its enantiomers, the observed rotation is +22.4 degrees per g/L. If the known specific rotation is +24.2 degrees per g/L,, what is the % enantiomeric excess of the compound? 3. If the % enantiomeric excess of a chiral compound is 88.2%, what is its chiral purity?The specific rotation of vitamin C ( using the D line of sodium, at 20°C) is +24. Predict what the observed rotation would be for a solution containing 0.100 g of vitamin C dissolved in 10.0 ml of ethanol and placed in a sample cell with a length of 1dm.A solution of 0.50 g of (-)@epinephrine dissolved in 10.0 mL of diluteaqueous HCl was placed in a 20-cm polarimeter tube. Using the sodium D line, the rotation was found to be -5.1° at 25 °C. Determine the specific rotation of epinephrine.