ORGANIC CHEM(PKG) TEXT+MASTERING+SOL M
7th Edition
ISBN: 9781269723657
Author: Bruice
Publisher: PEARSON C
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Chapter 4.9, Problem 22P
(S)-(+)-Monosodium glutamate (MSG) is a flavor enhancer used in many foods. Some people have an allergic reaction to MSG (including headache, chest pain, and an overall feeling of weakness), fast food often contains substantial amounts of MSG. which is widely used in Chinese food as well (S)-(+)-MSG has a specific rotation of +24.
- a. What is the specific rotation of (R)-(–)-monosodium glutamate?
- b. What is the specific rotation of a racemic mixture of MSG?
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(S)-(+)-Monosodium glutamate (MSG) is a flavor enhancer used in many foods. Some people have an allergic reaction to MSG (including headache, chest pain, and an overall feeling of weakness). "Fast food" often contains substantial amounts of MSG, which is widely used in Chinese food as well. (S)-(+)-MSG has a specific rotation of +24.
a). What is the specific rotation of (R)-(−)-monosodium glutamate?
b). What is the specific rotation of a racemic mixture of MSG?
A certain compound has a specific rotation of -43.2o (c = 5, toluene). What is the observed rotation of a sample of 1.24 g of the enantiomer of this compound when diluted to a concentration of 1.00 g ml-1 in the same solvent?
Example 30 In his classic studies of stereochemistry and optical activity in organic compounds, Pasteur measured the optical activity of many solutions. For the naturally occurring enantiomer of tartaric acid, [α]D20 = +12.4o (c = 20, H2O). What can be concluded about the ratio of tartaric acid enantiomers present in the solution if the observed rotation is (i) α = -6.0o, or (ii) α = 0o?
A student isgiven a solution labeled only as 2,3-dihydroxybutane. She used the polarimeter to determine its optical rotation, and found that the solution was not optically active. Draw the absolute configuration of theisomer of 2,3-dihydroxybutane that would give zero optical rotation.
Chapter 4 Solutions
ORGANIC CHEM(PKG) TEXT+MASTERING+SOL M
Ch. 4.1 - Prob. 2PCh. 4.1 - Prob. 3PCh. 4.1 - Prob. 4PCh. 4.1 - Prob. 5PCh. 4.1 - Which of the roll owing compounds have a dipole...Ch. 4.2 - Prob. 7PCh. 4.3 - Prob. 8PCh. 4.4 - Prob. 10PCh. 4.4 - Prob. 11PCh. 4.6 - Prob. 12P
Ch. 4.7 - Prob. 14PCh. 4.7 - Prob. 16PCh. 4.7 - Prob. 17PCh. 4.7 - Draw a perspective formula for each or the...Ch. 4.8 - Prob. 20PCh. 4.9 - Prob. 21PCh. 4.9 - (S)-(+)-Monosodium glutamate (MSG) is a flavor...Ch. 4.10 - Prob. 23PCh. 4.10 - Prob. 24PCh. 4.11 - Prob. 26PCh. 4.11 - Prob. 27PCh. 4.11 - Prob. 28PCh. 4.11 - The stereoisomer of cholesterol found in nature is...Ch. 4.11 - Prob. 30PCh. 4.12 - Prob. 31PCh. 4.12 - Draw all possible stereoisomers for each of the...Ch. 4.12 - Prob. 33PCh. 4.12 - Of all the possible cyclooctanes that have one...Ch. 4.12 - Prob. 35PCh. 4.12 - Prob. 36PCh. 4.13 - Which of the following compounds has a...Ch. 4.13 - Prob. 39PCh. 4.14 - Prob. 40PCh. 4.14 - Name the isomers you drew in Problem 52.Ch. 4.14 - Chloramphenicol is a broad-spectrum antibiotic...Ch. 4.14 - Draw a perspective formula for each of the...Ch. 4.14 - Name the following:Ch. 4.14 - Prob. 45PCh. 4.14 - Prob. 48PCh. 4.14 - Prob. 50PCh. 4.15 - Limonene exists as two different stereoisomers....Ch. 4.16 - Prob. 52PCh. 4 - a. Draw three constitutional isomers with...Ch. 4 - Prob. 53PCh. 4 - Prob. 54PCh. 4 - Which of the following has an asymmetric center?...Ch. 4 - Prob. 56PCh. 4 - Prob. 57PCh. 4 - Prob. 58PCh. 4 - Which of the following are optically active?Ch. 4 - Prob. 60PCh. 4 - Prob. 61PCh. 4 - Which of the following has an achiral...Ch. 4 - Prob. 63PCh. 4 - Prob. 64PCh. 4 - Prob. 65PCh. 4 - Prob. 66PCh. 4 - Prob. 67PCh. 4 - Prob. 68PCh. 4 - Prob. 69PCh. 4 - Prob. 70PCh. 4 - Prob. 71PCh. 4 - Prob. 72PCh. 4 - Prob. 73PCh. 4 - a. Draw all the isomers with molecular formula...Ch. 4 - Prob. 75PCh. 4 - Prob. 76PCh. 4 - Draw structures for the following: a....Ch. 4 - Prob. 78PCh. 4 - Prob. 79PCh. 4 - Prob. 80PCh. 4 - a. Using the wedge-and-dash notation, draw the...Ch. 4 - Prob. 82PCh. 4 - Prob. 83PCh. 4 - Prob. 84PCh. 4 - a. Draw the two chair conformers for each of the...Ch. 4 - Prob. 86PCh. 4 - Is the following compound optically active?
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