If the enantiomeric excess of a mixture is 81%, what are the percent compositions of the major and minor enantiomer? major enantiomer = % minor enantiomer =
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- For each ee value (enantiomeric excess value), calculate the percentage of each enantiomer presentHow much of the R enantiomer is present in 10g of a mixture that has an enantiomeric excess of 30% of the S isomer?Consider a solution made up of 90% R and 10% S. What is the enantiomeric excess (ee%) of the R enantiomer?
- What are the major products? Show stereo chemistry (wedge, dash or stick) and indicate if there are enantiomers.The absolute configuration of BAGO is (dextrorotatory, levorotatory, R, S). The melting point of its enantiomer will be (higher, lower, equal) than/with 197.2. The relative configuration of its enantiomer will be (dextrorotatory, levorotatory, R, S). The density of BAGO is (higher, lower, equal, twice) the density of its enantiomer.How many stereoisomers are possible for keppra
- Between trans-2-tert-butylcyclohexanol and cis-2-tert-butylcyclohexanol, which stereoisomer and configuration is the most stable? Why? Show where the steric strain occurrsIn the molecule in the image: i) indicate how many stereogenic centres there are and if the molecule is overall chiral or not ii) assign the appropriate stereodescriptors to the moleculesThe [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.
- If the sample of the pure R enantiomer of a molecule has a specific rotation of -40 degrees and your mixture of that molecule has an 82% ee S, what is the observed specific rotation of your sample?Draw the meso form of (1R,4R)-cycloheptane-1,4-diol Use the wedge/hash bond tools to indicate stereochemistry where it exists. Show stereochemistry in a meso compound.Consider a mixture that is 60% (+) enantiomer and 40% (-) enantiomer. In which direction will the mixture rotate plane-polarized light? What is the enantiomeric excess of the mixture?