3.34 The specific rotation of (S)-carvone (at +20°C) is +61. A chemist prepared a mixture of (R)- OF (R)- carvone a...
5.54 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?
10. What is the specific rotation of a sample of carvone that is an equal mixture of the R and S enantiomers? (R)- carvone has a specific rotation of -61°. a. -61° b. 64° d. +61° c. 0° 11. What is the percentage of the R enantiomer in a sample of carvone that has a specific rotation of 30°, given that the specific rotation of (R)-carvone is -61°? (2 pt ... this is challenging.) a. 26% b. 51% c. 49%...
need help with 15-17 For Problems 15-17, consider (R)-carvone (below), -61. which has a specific rotation of [a] o CH3 (t 4)S H2C CH3 15. What is the % ee of a sample of carvone that exhibits a specific rotation of -40? (1 pt) 16. What is the specific rotation of a sample of carvone that contains a 50/50 mixture of the R and S enantiomers? (1 pt) 17. If a sample of carvone gives a specific rotation of +48,...
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?
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...
what is the % of the S enantiomer in a sample of carvone that has a specific rotatin of -20, given that the specific rotation of R-carvone is -61?
vy.03- to nodollisestdinxs or snovno 10 9 63. What is the percentage of the R enantiomer in a sample of carvone that has a specific rotation of -20, given that the specific rotation of (R)-carvone is -61? A. 20% B. 66.5% C. 33.5% D. 61% Ans: Tot 1902 or bus 00-noi stor stigaganasvi novi lo l l l2 Blods 210 Slot vad v i s enworloob.10-igroviso alagi
PRINTtR VERSION イBACK NEXT Practice Problem 05.43 Your answer is incorrect. Try again. 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 3.50 g of the mixture was dissolved in 10.0 ml of water. This solution was then placed in a sample cell with a pathlength of 10.0 cm and the observed rotation was-0.38. Calculate the % ee of the mixture. the tolerance is +/-2% SHOW HINT...
Given: Tuluene has 24% ee of (s) product, 55% yield of product, 62% of s, and 38% r. The observed rotation for the product mixture is 18.7. What is the specific rotation of the S enantiomer?
if a sample contains 83% of the R enantiomer and 17% of the S, what is the enantiomeric sxcess? the following compound is optically active or not. all 2019 Achical Be No 3 Br 03 pts.] If a sample contains 83% of the R enantiomer and 17% of the S enantiomer vhat is the enantiomeric excess of the mixture. 3 pts.1 What is the specific rotation of a sample of carvone that is an equal mixture the R and S...