6. A solution of the enantiomer of compound X has an optical rotation of-109.8 What is...
the R-(+) enantiomer of a certain compound has a specific rotation of +52. A mixture of this compound with its enantiomer has a has an observed rotation of -26. what is the %ee of this sample and which enantiomer is in excess? what is the ration of R:S in this mixture?
A 0.110 M solution of an enantiomerically pure chiral compound D has an observed rotation of 0.18° in a 1-dm sample container. The molar mass of the compound is 174.0 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 0.110 M in L, the enantiomer of D? (c) What is the observed rotation if the solution of D is diluted...
A 0.140 M solution of an enantiomerically pure chiral compound D has an observed rotation of 0.18° in a 1-dm sample container. The molar mass of the compound is 150.0 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 0.140 M in L, the enantiomer of D? (c) What is the observed rotation if the solution of D is diluted...
A 0.110 M solution of an enantiomerically pure chiral compound D has an observed rotation of +0.24° in a 1-dm sample container. The molar mass of the compound is 144.0 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 0.110 M in L, the enantiomer of D? Number deg mL Number g dm deg (c) What is the observed rotation...
A 0.120 M solution of an enantiomerically pure chiral compound D has an observed rotation of + 0.26 degree in a 1-dm sample container. The molar mass of the compound is 153.0 g/mol. What is the specific rotation of D? What is the observed rotation if this solut is mixed with an equal volume of a solution t is 0.120 M in L, the enantiomer of D? What is the observed rotation if the solution of D is diluted with...
1) Suppose that a pure compound has a specific rotation of +49°. In the laboratory a solution in which the compound is mixed with its enantiomer is found to have a specific rotation of +12. What is the %ee of the mixture? What percent of the mixture is (+) enantiomer and what percent is (-) enantiomer? 2) Give the structure of 3,3-Dimethylpetane. How many monochlorinated product can be formed from this compound reacting with Cl? Give the structure of each...
2) Natural epinephrine (with a specific rotation of -50°) is used medicinally. Its enantiomer is medically worthless and is, in fact, toxic. You, a pharmacist, are given a solution said to contain epinephrine, but the optical purity is not mentioned. You place it in a polarimeter and get an observed optical rotation of -150. What is the enantiomeric excess of natural epinephrine? How much of each enantiomer is in the mixture? You must show your work to get credit.
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...
D Apure stereoisomer of a compound has a specific rotation Of - 39.00. A 100 ML solution of o.187 g ot an enantiomeric mixture of the compound has an Obschied rotation of -6.520 When placed in a polanmeter tube 10cm long. what is the percent of each enantiomer in the solution? Show all work." ort Answer: Answer each question to the best of your ability. Be sure to show your thought udget your time wisely - not all questions are...
5.41 Predict the value for the specific rotation of the following compound. Explain your answer. -OH НО. 5.42 The specific rotation of (S)-2-butanol is +13.5. If 1.00 g of its enantiomer is dissolved in 10.0 mL of ethanol and placed in a sample cell with a length of 1.00 dm, what observed rotation do you expect? 5.43 The specific rotation of l-alanine in water (at 25°C) is +2.8. A chemist prepared a mixture of l- alanine and its enantiomer, and...