ORGANIC CHEMISTRY-EBOOK>I<
ORGANIC CHEMISTRY-EBOOK>I<
9th Edition
ISBN: 9781305084414
Author: McMurry
Publisher: INTER CENG
bartleby

Concept explainers

Question
Book Icon
Chapter 14.SE, Problem 61AP
Interpretation Introduction

Interpretation:

The concentration of the ergosterol solution whose absorbance A= 0.065 with a sample pathlength l = 1.00 cm is to be calculated if ergosterol has a UV absorption maxima of 282 nm and mole absorptivity ε = 11,900.

Concept introduction:

The molar absorptivity, ε, is given by ORGANIC CHEMISTRY-EBOOK>I<, Chapter 14.SE, Problem 61AP where A is absorbance, C is the concentration of the solution in moles/lit and l is the sample path length in cm.

To calculate:

The concentration of the ergosterol solution whose absorbance A= 0.065 with a sample pathlength l = 1.00 cm, if ergosterol has a UV absorption maxima of 282 nm and mole absorptivity ε = 11,900.

Blurred answer
Students have asked these similar questions
Find the A and T% of a 6.5X104 mol L1 solution of a drug (Molecular weight 200) whose absorptivity is 0.026 L cm1 g'at 520 nm when measured in a cell of 2.00 cm pathlength?
UV: max 235 (ε 12,000) and max 314 (ε 120) EIMS: m/z 39 (31%), 41 (33%), 55 (37%), 69 (26%), 98 (100%), 99 (7%), 100 (0.2%) IR: Imm IR spectrum in CCl4 solvent 2950 cm-¹ 2000 4) RC=N 5) 0-H BAYEHUNIERI - R 1630 cm-¹ 1710 cm-¹ $10 4a) Which of the following heteroatoms that are definitely NOT present based on the EIMS data? (Circle all that apply). Br Cl FSI 0 4 continued) Please refer to data on preceding page. 4b) From the EIMS data what is the best estimate of the number of carbon atoms in this molecule? 4c) From the UV data, conjugated л-bonds are: definitely present definitely absent 4d) From the IR spectrum alone, which of the following functional groups can be definitely ruled OUT? Circle those that are ruled out and briefly explain why. 1) C=0 2) RC=CR 3) C=C cannot tell
Figure 1 shows a 1H NMR spectrum of a solution that was prepared by dissolving 1,3,5-trimethoxybenzene (10.22 mg) in CDCl3 (1.470 g).T What is the concentration in mol dm–3 of CHCl3 present in the CDCl3? (Density of CDCl3 = 1.500 g mL–1.)

Chapter 14 Solutions

ORGANIC CHEMISTRY-EBOOK>I<

Ch. 14.6 - Prob. 11PCh. 14.6 - Prob. 12PCh. 14.7 - Prob. 13PCh. 14.7 - Prob. 14PCh. 14.8 - Which of the following compounds would you expect...Ch. 14.SE - Prob. 16VCCh. 14.SE - Show the product of the Diels–Alder reaction of...Ch. 14.SE - Prob. 18VCCh. 14.SE - Prob. 19VCCh. 14.SE - Prob. 20MPCh. 14.SE - Prob. 21MPCh. 14.SE - In light of your answer to Problem 14-21 propose...Ch. 14.SE - Luminol, which is used by forensic scientists to...Ch. 14.SE - Prob. 24MPCh. 14.SE - Give IUPAC names for the following compounds:Ch. 14.SE - Prob. 26APCh. 14.SE - Prob. 27APCh. 14.SE - Electrophilic addition of Br2 to isoprene...Ch. 14.SE - Prob. 29APCh. 14.SE - Prob. 30APCh. 14.SE - Predict the products of the following...Ch. 14.SE - 2,3-Di-tert-butyl-1,3-butadiene does not undergo...Ch. 14.SE - Prob. 33APCh. 14.SE - Prob. 34APCh. 14.SE - Prob. 35APCh. 14.SE - Prob. 36APCh. 14.SE - Rank the following dienophiles in order of their...Ch. 14.SE - Prob. 38APCh. 14.SE - Prob. 39APCh. 14.SE - Prob. 40APCh. 14.SE - Although the Diels–Alder reaction generally...Ch. 14.SE - Prob. 42APCh. 14.SE - Tires whose sidewalls are made of natural rubber...Ch. 14.SE - Prob. 44APCh. 14.SE - Prob. 45APCh. 14.SE - Prob. 46APCh. 14.SE - Would you expect allene, H2C = C = CH2, to show a...Ch. 14.SE - The following ultraviolet absorption maxima have...Ch. 14.SE - Prob. 49APCh. 14.SE - -Ocimene is a pleasant-smelling hydrocarbon found...Ch. 14.SE - Draw the resonance forms that result when the...Ch. 14.SE - Prob. 52APCh. 14.SE - Treatment of 3,4-dibromohexane with strong base...Ch. 14.SE - Prob. 54APCh. 14.SE - Prob. 55APCh. 14.SE - Prob. 56APCh. 14.SE - Prob. 57APCh. 14.SE - Prob. 58APCh. 14.SE - Hydrocarbon A, C10H14, has a UV absorption at...Ch. 14.SE - Prob. 60APCh. 14.SE - Prob. 61APCh. 14.SE - Prob. 62APCh. 14.SE - Prob. 63APCh. 14.SE - Prob. 64APCh. 14.SE - The double bond of an enamine (alkene + amine) is...Ch. 14.SE - Prob. 66AP
Knowledge Booster
Background pattern image
Chemistry
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
SEE MORE QUESTIONS
Recommended textbooks for you
  • Text book image
    Organic Chemistry
    Chemistry
    ISBN:9781305580350
    Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
    Publisher:Cengage Learning
    Text book image
    Organic Chemistry
    Chemistry
    ISBN:9781305080485
    Author:John E. McMurry
    Publisher:Cengage Learning
    Text book image
    Introduction to General, Organic and Biochemistry
    Chemistry
    ISBN:9781285869759
    Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
    Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9781305080485
Author:John E. McMurry
Publisher:Cengage Learning
Text book image
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning