Organic Chemistry (9th Edition)
9th Edition
ISBN: 9780321971371
Author: Leroy G. Wade, Jan W. Simek
Publisher: PEARSON
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Chapter 5, Problem 5.33SP
Interpretation Introduction
Interpretation: The specific rotation of a mixture of
Concept introduction: The concentration of the compound affects the rotation of polarized light in Polarimeter. The rotation is also dependent upon the length of the cell and optical activity of the compound. Optical purity of a compound is measured by the enantiomeric excess.
To determine: The specific rotation of a mixture of
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Chapter 5 Solutions
Organic Chemistry (9th Edition)
Ch. 5.2 - Determine whether the following objects are chiral...Ch. 5.2A - Prob. 5.2PCh. 5.2B - Prob. 5.3PCh. 5.2B - Prob. 5.4PCh. 5.2C - Prob. 5.5PCh. 5.3 - Prob. 5.6PCh. 5.3 - Prob. 5.7PCh. 5.4D - Prob. 5.8PCh. 5.4D - Prob. 5.9PCh. 5.4D - Prob. 5.10P
Ch. 5.5 - Prob. 5.11PCh. 5.7 - When optically pure (R)-2-bromobutane is heated...Ch. 5.7 - Prob. 5.13PCh. 5.8 - Prob. 5.14PCh. 5.9B - Draw three-dimensional representations of the...Ch. 5.10A - For each sot of examples, make a model of the...Ch. 5.10A - Draw a Fischer projection for each compound....Ch. 5.10B - Prob. 5.18PCh. 5.10C - For each Fischer projection, label each asymmetric...Ch. 5.11C - Prob. 5.20PCh. 5.13 - Prob. 5.21PCh. 5.13 - Prob. 5.22PCh. 5.15 - Prob. 5.23PCh. 5.16A - Prob. 5.24PCh. 5 - The following four structures are naturally...Ch. 5 - For each structure, 1. star () any asymmetric...Ch. 5 - Prob. 5.27SPCh. 5 - Prob. 5.28SPCh. 5 - Prob. 5.29SPCh. 5 - Prob. 5.30SPCh. 5 - Prob. 5.31SPCh. 5 - Prob. 5.32SPCh. 5 - Prob. 5.33SPCh. 5 - Prob. 5.34SPCh. 5 - For each structure, 1. draw all the stereoisomers....Ch. 5 - Prob. 5.36SPCh. 5 - Prob. 5.37SPCh. 5 - 3,4-Dimethylpent-1-ene has the formula...Ch. 5 - A graduate student was studying enzymatic...Ch. 5 - Prob. 5.40SPCh. 5 - Prob. 5.41SP
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- 2. A mixture of two enantiomers has as observed rotation of -18°. The specific rotation of the (-)enantiomers is -27°. Find the % of the two enantiomers in the solution.arrow_forwardIf the optical rotation of a pure enantiomer A is +10 and the optical rotation of a mixture of two enantiomers (A+B) is -4 (Negative 6), what is the percentage of A and B in that mixture?arrow_forwardWhen 4.35 g of menthol is dissolved in 3.20 mL of ether and placed in a sample cell 1 dm in length, the observed rotation at 20 degrees celcius using the D line of sodium is 49.25 degrees. Calculate the specific rotation of menthol.arrow_forward
- (S)-carvone is an optically active compound with a specific rotation of +61.1°. A solution of carvone stereoisomers has an observed specific rotation of 25.0°. Could someone help me Calculate the percent enantiomeric excess (%ee) of this mixture? I tried it but I keep getting the wrong answer.arrow_forward(+)-Mandelic acid has a specific rotation of +158. What would be the observed specific rotation of each of the following mixtures? a. 50% (-)-mandelic acid and 50% (+)-mandelic acid b. 25% (-)-mandelic acid and 75% (+)-mandelic acid c. 75% (-)-mandelic acid and 25% (+)-mandelic acidarrow_forwardIf (S)-2-ethyl-1-hexanol has a specific rotation of -20.05 degrees, what is the specific rotation of (R)-2-ethyl-1-hexanol ? -20.05 degrees 20.05 degrees 0 degrees It must be experimentally determined.arrow_forward
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