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- 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?An attempt at synthesizing a certain optically-active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of +14.2°. If it is known that the specific rotation of the R enantiomer is -31.0°, determine the percentage of each isomer in the mixture. R enantiomer: % S enantiomer: %The specific rotation of vitamin B7 in water (22°C) is +92°. A mixture of vitamin B7 and its enantiomer has a specific rotation of + 27.6°. What is the percentage of vitamin B7 and its enantiomer in this mixture? Select one: O A. 60% vitamin B7 : 40% enantiomer B. 65% vitamin B7 : 35% enantiomer C. 55% vitamin B7 : 45% enantiomer D. 70% vitamin B7 : 30% enantiomer
- r The specific rotation of a pure enantiomer is +1.68°. What is the specific rotation of the other enantiomer? +0.84° O +1.26° Ⓒ+.042° +1.68° -1.68°The pure D-form of a compound has a specific rotation (D line of sodium, 20° C) of +24°, whereas the pure L- form of the compound has a specific rotation (D line of sodium, 20° C) of -24°. If a scientist has a sample of this compound that is known to be 78% pure D-form (and, therefore, 100% - 78% pure L-form), what will be the observed rotation of this sample? Enter your answer to the nearest hundredth. The units are assumed to be degrees. 13.44What is the observed rotation of an equal amount of two enantiomers?
- The specific rotation, [a]p, for (-)-malic acid is -27. What is the observed rotation for a solution of 0.75 g of (-)-malic acid in 10 mL of water in a sample tube having a pathlength of 10 cm? degrees. The observed rotation of a solution of 1.4 g of a compound in 10 mL of water is +1.3 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound? 9 more group attempts remaining Submit Answer Retry Entire GroupLabel each molecule with chiral centers (R) and (S). Which ones have more than one?What is the structure's enantiomer. What are the structure's absolute configuration and its enantiomer's configuration?