Organic Chemistry
4th Edition
ISBN: 9780073402772
Author: Janice G. Smith
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 5, Problem 5.28P
Interpretation Introduction
Interpretation: The specific rotation of the given compound is to be calculated.
Concept introduction: The specific rotation,
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A 1.52 M solution of (R)-2-butanol is mixed with an equal volume of a 0.760 M solution of racemic 2-butanol, and the resulting
solution is analyzed in a sample container that is 1 dm long. What observed rotation is expected? The specific rotation of
(R)-2-butanol is -13.9 degrees mL g-¹ dm¯¹.
α =
deg
The specific rotation for (-)-methylphenidate is -38° mL g¹ dm¯1. Path length of the polarimeter is 1 dm.
1
You dissolve 0.5 g of a mixture of (-)-methylphenidate and its enantiomer in 4 mL of water. You place the sample into a
polarimeter and the observed rotation is found to be -0.2°. What percent of the mixture is composed of (-)-
methylphenidate? (Round your answer to the nearest whole percent.)
The numerical values in this calculation will change with each attempt. Double check before submitting additional
attempts.
17
7. Optical Activity: ban
(a) Calculate the specific rotation for Compound A, whose observed rotation was (+) 35.0 for a
solution made from 0.200 g dissolved in 2 mL of chloroform solvent. The cell path length was 10 cm.
NO
110 HD HD ba
HO
Chapter 5 Solutions
Organic Chemistry
Ch. 5 - Prob. 5.1PCh. 5 - Prob. 5.2PCh. 5 - Draw the mirror image of each compound. Label each...Ch. 5 - Prob. 5.4PCh. 5 - Prob. 5.5PCh. 5 - Prob. 5.6PCh. 5 - The facts in section 5.4A can be used to locate...Ch. 5 - Prob. 5.8PCh. 5 - Prob. 5.9PCh. 5 - Prob. 5.10P
Ch. 5 - Prob. 5.11PCh. 5 - Prob. 5.12PCh. 5 - Label each compound as R or S.Ch. 5 - Prob. 5.14PCh. 5 - Prob. 5.15PCh. 5 - Prob. 5.16PCh. 5 - Prob. 5.17PCh. 5 - Prob. 5.18PCh. 5 - Prob. 5.19PCh. 5 - Prob. 5.20PCh. 5 - Prob. 5.21PCh. 5 - Prob. 5.22PCh. 5 - Prob. 5.23PCh. 5 - Which of the following cyclic molecules are meso...Ch. 5 - Prob. 5.25PCh. 5 - Prob. 5.26PCh. 5 - The amino acid (S)-alanine has the physical...Ch. 5 - Prob. 5.28PCh. 5 - Prob. 5.29PCh. 5 - Prob. 5.30PCh. 5 - Prob. 5.31PCh. 5 - Prob. 5.32PCh. 5 - Prob. 5.33PCh. 5 - Prob. 5.34PCh. 5 - Prob. 5.35PCh. 5 - Prob. 5.36PCh. 5 - Prob. 5.37PCh. 5 - Determine if each compound is identical to or an...Ch. 5 - Prob. 5.39PCh. 5 - Locate the stereogenic centers in each compound. A...Ch. 5 - Prob. 5.52PCh. 5 - Prob. 5.41PCh. 5 - Prob. 5.42PCh. 5 - Prob. 5.43PCh. 5 - Prob. 5.44PCh. 5 - Prob. 5.45PCh. 5 - Label each stereogenic center as R or S. a. c. e....Ch. 5 - Prob. 5.47PCh. 5 - Prob. 5.48PCh. 5 - Prob. 5.49PCh. 5 - Prob. 5.50PCh. 5 - Prob. 5.51PCh. 5 - Prob. 5.53PCh. 5 - Prob. 5.54PCh. 5 - Prob. 5.55PCh. 5 - Draw all possible stereoisomers for each...Ch. 5 - Prob. 5.57PCh. 5 - 5.59 Explain each statement by referring to...Ch. 5 - Prob. 5.59PCh. 5 - Prob. 5.60PCh. 5 - Prob. 5.61PCh. 5 - Prob. 5.62PCh. 5 - Prob. 5.63PCh. 5 - Prob. 5.64PCh. 5 - Prob. 5.65PCh. 5 -
5.67 Artemisinin and mefloquine are widely used...Ch. 5 - 5.68 Saquinavir (trade name Invirase) is a...Ch. 5 - Prob. 5.68PCh. 5 - Prob. 5.69PCh. 5 - Prob. 5.70PCh. 5 - Prob. 5.71PCh. 5 - Problem 5.73 An acid-base reaction of with a...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- When 0.018 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 degrees (Using the D line of sodium) is -0.0567 degrees. Calculate the specific rotation of cholesterol. specific rotation= [α] =arrow_forward2. A 1.50 g sample of coniine, the toxic extract of poison hemlock, was dissolved in 10.0 mL of ethanol and placed in a sample cell with a 5.00 cm pathlength. The observed rotation at the sodium D line was +1.21°. Calculate [a]p for coniine. 3. Rank the substituents in each of the following sets: (а) -Н, -ОН, -СH2CH3, -СH2СH,ОН (b) -СОозН, -СО,CH3, -СH2ОН, -он (c) -CN, –CH2NH2, -CH2NHCH3, –NH2 (d) –SH, –CH2SCH3, –CH3, -SSCH3arrow_forwardI want a quick solution, I don't have enough timearrow_forward
- A student has isolated a chiral alkyl halide (shown below) with a specific rotation of [a] = +22.1°. The student decided to store the compound in the solvent MeOH overnight. However, reanalysis of the alkyl halide showed a new chemical formula of C1H160 with a specific rotation of [a] = 0°. Suggest a mechanism to justify these results. Brarrow_forwardAn 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=arrow_forwardYou synthesize the enantiomer of levetiracetam, but your specific rotation is found to be 67.8. What is the enantiomeric excess (% ee) of this product?arrow_forward
- Please help me solve some of my assignments thank you so much!arrow_forward(R)-Camphor [a]20, = +44.0°/(g/mL)dm %3D A researcher places a 0.5 g/mL sample of camphor into a 1.0 dm cell and determines the observed rotation at 589 nm and 20 °C is +2.2°. What is the enantiomeric excess of (R)-camphor in the sample? 20% 95% 5% 10% 90% 80%arrow_forwardThe specific rotation of (S) butanol is +13.5 if 1.00g of its enantiomer is dissolved in 10.0mL of ethanol and placed in a sample cell with a length of 1.00 dm, what observed rotation do you expect?arrow_forward
- Thalidomide exists in two enantiomeric isomers as shown below. N (R) NI(S) O If a solution is prepared by adding a 50:50 ratio of two enantiomers what will be the expected observed rotation? Explain your answer in 1-2 sentences.arrow_forwardWhen 1 g of compound X is dissolved in 100 mL of solvent, the observed rotation is +12. What will be the observed rotation if 1 g of compound X is dissolved in 200 mL of solvent?arrow_forwardWhy are azo compounds good building blocks for organic dyes because aromatic azo compounds have alternating C-C and C=C bonds azo coupling removes the N-N triple bond azo coupling generates new C=C bonds O Azo coupling makes a longer conjugation systemarrow_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