Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 3.7, Problem 3.9P
Interpretation Introduction
Interpretation:
The observed rotation for the given prepared solution has to be calculated.
Concept Introduction:
Specific rotation:
Specific rotation is given by,
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
The quantitative differences in biological activity between the two enantiomers of a compound are sometimes quite large. For example, the D isomer of the drug isoproterenol, used to treat mild asthma, is 50 to 80times more effective as a bronchodilator than the L isomer. Identify the chiral center in isoproterenol. Why do the two enantiomers have such radically different bioactivity?
An aqueous solution containing 6.67 g of an optically-pure compound was diluted to 7.00 x 10 mL with water and placed in a
15.0 cm long polarimeter tube. The measured rotation was -2.61° at 25° C. Calculate the specific rotation of the compound.
= (α=
(S)-2-Bromobutane has a specific rotation of +23.1°. Suppose that a solution is made by dissolving 20.00 g of (S)-2-bromobutane in 1.00 L total solution. What would be the measured rotation of plane-polarized light sent througha 10.00-cm tube containing that solution?
Chapter 3 Solutions
Organic Chemistry
Ch. 3.2 - Prob. 3.1PCh. 3.3 - Assign priorities to the groups in each set. (a)...Ch. 3.3 - Prob. 3.3PCh. 3.4 - Following are stereorepresentations for the four...Ch. 3.4 - Prob. 3.5PCh. 3.4 - Prob. 3.6PCh. 3.5 - How many stereoisomers exist for...Ch. 3.5 - How many stereoisomers exist for...Ch. 3.7 - Prob. 3.9PCh. 3.7 - Prob. 3.10P
Ch. 3.8 - If the side chain of the amino add is a methyl...Ch. 3.8 - Prob. BQCh. 3.8 - The amino acids cysteine and serine are shown....Ch. 3.8 - Prob. DQCh. 3.8 - As stated, proteins are stereochemically pure...Ch. 3.8 - As stated, proteins are stereochemically pure...Ch. 3 - Prob. 3.11PCh. 3 - One reason we can be sure that sp3-hybridized...Ch. 3 - Which compounds contain chiral centers? (a)...Ch. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Mark each chiral center in the following molecules...Ch. 3 - Prob. 3.19PCh. 3 - Assign priorities to the groups in each set. (a) H...Ch. 3 - Following are structural formulas for the...Ch. 3 - Following is a staggered conformation for one of...Ch. 3 - Prob. 3.23PCh. 3 - When oxaloacetic acid and acetyl-coenzyme A...Ch. 3 - Prob. 3.25PCh. 3 - Mark each chiral center in the following molecules...Ch. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.30PCh. 3 - Which of the following are meso compounds?Ch. 3 - Prob. 3.32PCh. 3 - Prob. 3.33PCh. 3 - Which of the following compounds are chiral?...Ch. 3 - Prob. 3.35PCh. 3 - Prob. 3.36PCh. 3 - Prob. 3.37PCh. 3 - The chiral catalyst (R)-BINAP-Ru is used to...Ch. 3 - Prob. 3.39P
Knowledge Booster
Similar questions
- The specific rotation, [a]p, for (-)-2-butanol is +14. What is the observed rotation for a solution of 3.3 g of (-)-2-butanol in 10 mL of water in a sample tube having a pathlength of 10 cm? degrees . The observed rotation of a solution of 0.75 g of a compound in 10 mL of water is -6.9 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound?arrow_forwardView Policies Current Attempt in Progress When 0.234 g of monosodium glutamate (MSG) is dissolved in 10.0 mL of water and placed in a sample cell 10.0 cm in length, the observed rotation at 20°(using the D line of sodium) is +0.599°. Calculate the specific rotation of MSG. specific rotation = [a] = i eTexthook and Mediaarrow_forward1. When 0.247 g of monosodium glutamate (MSG) is dissolved in 10.0 mL of water and placed in a sample cell 10.0 cm in length, the observed rotation at 20°(using the D line of sodium) is +0.632°. Calculate the specific rotation of MSG. 2. When 0.095 g of cholesterol is dissolved in 1.00 mL of ether and placed in a sample cell 10.0 cm in length, the observed rotation at 20°C (using the D line of sodium) is -0.299°.Calculate the specific rotation of cholesterol.3. The specific rotation of L-dopa in water (at 15°C) is -39.5. A chemist prepared a mixture of L-dopa and its enantiomer, and this mixture had a specific rotation of -34. Calculate the % ee of this mixture. 4. The specific rotation of vitamin B7 in water (at 22°C) is +92. A chemist prepared a mixture of vitamin B7 and its enantiomer, and this mixture had a specific rotation of +18. Calculate the % ee of this mixture.arrow_forward
- If a substance is known to have a specific rotation of +20.0 deg mL/g dm, what is the concentration (in g/mL) of a solution that would give an observed rotation of +10.0 degrees, if the path length of the sample tube was 1.00 dm? Can you do this problem in your head?arrow_forwardThe specific rotation, [x]p, for sucrose is +67. What is the observed rotation for a solution of 1.0 g of sucrose in 10 mL of water in a sample tube having a pathlength of 10 cm? degrees . The observed rotation of a solution of 0.75 g of a compound in 10 mL of water is -6.9 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound?arrow_forwardExplain the relationship between optical activity and specific rotation with examples.arrow_forward
- Explain the term proper rotation in symmetry.arrow_forwardAn aqueous solution containing 10 g of an optically pure compound was diluted to 500 mL with water and was found to have a specific rotation of −121º. If this solution were mixed with 500 mL of a solution containing 3 g of a racemic mixture of the compound, what would the specific rotation of the resulting mixture of the compound? What would be its optical purity?arrow_forwardWhat is the best classification of sucrose, C12H22011? Compound Heterogeneous Mixture Homogeneous Mixture Elementarrow_forward
- 2. The observed rotation of a compound, X (14.0g dissolved in water to make 100ml. of solution) in a polarimeter tube of length 30cm is +10.5°. What is the specific rotation of X?arrow_forwardWhat do you mean by Specific Rotation ?arrow_forwardch 7 1: photosynthesis uses 690-nm light to convert CO2 and H2O into glucose and O2. claculate the frequncy of this light.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning