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Pls help on both 9,10
Step by step
Solved in 4 steps
- The [α] of a pure enantiomer is -39°. The observed rotation of a sample containing both enantiomers was found to be -0.62°. a) Calculate the enantiomeric excess (e.e %) b) Calculate the percent of each enantiomer present.What% of the enantiomer (R) contains a mixture with an 80% enantiomeric excess in the enantiomer S)? Explain your answer.I need help with both parts here. An FYI if you need, Part 2 means enantiomers, diasteromers, or constitutional isomers.
- 1. Which model/s has at least one plane of symmetry? 2. Which model/s are superimposable on their mirror image?Stereoisomers differ from each other in what respect? A.) Composition B.) Constitution C.) Configuration D.) Steric hindrance E.) NonePlane-polarized light is transmitted through a chamber that contains a single enantiomer and rotates to the right. Plane-polarized light passed through a chamber containing the other enantiomer would rotate ________ A. to the right B. not at all C. in a way that cannot be predicted D. to the left A 1:1 mixture of the enantiomers would rotate ______ A. to the right B. not at all C. in a way that cannot be predicted D. to the left
- The [α] of pure quinine, an antimalarial drug, is −165. a.Calculate the ee of a solution with the following [α] values: −50, −83, and −120. b. For each ee, calculate the percent of each enantiomer present. c.What is [α] for the enantiomer of quinine? d. If a solution contains 80% quinine and 20% of its enantiomer, what is the ee of the solution? e. What is [α] for the solution described in part (d)?For the given ee values, calculate the percentage of each enantiomer present.a. 90% eeb. 99% eec. 60% eeThe figure can rotate the plane of polarized light by 4.52 counterclockwise, 1. what is its configuration based on optical activity, 2. what is the absolute and relative configuration of the figure and 3. what is the angle of rotation of the plane-polarized light of its ENANTIOMER
- 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)Construct models of 1,2-dibromocyclopentaneand draw all the possible stereoisomers. Label each chirality centre with an*,andan Ror S. Indicate clearly which pairs are relatedasenantiomers and which as diastereoisomersor meso.I need help with this one molecule question it requires multiple steps: a-d. And are the major products enantiomers, diastereomers , or same molecule?
