Organic Chemistry; Modified MasteringChemistry with Pearson eText -- ValuePack Access Card; Study Guide and Student Solutions Manual for Organic Chemistry, Books a la Carte Edition (7th Edition)
7th Edition
ISBN: 9780134240152
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 45P
The 1H NMR spectrum of D-glucose in D2O exhibits two high-frequency doublets. What is responsible for these doublets?
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How would you use infrared spectroscopy to distinguish between the following pairs of constitutional isomers?
(a)
CH3C=CCH3
||
and
CH3CH2C=CH
(b)
CH3CCH=CHCH3
and
CH3CCH2CH=CH2
Problem 12-41
The mass spectrum (a) and the infrared spectrum (b) of an unknown hydrocarbon are shown. Propose as many
structures as you can.
(a)
100
Relative abundance (%)
80
60
60
40
200
20
(b)
100
Transmittance (%)
10
20
20
80-
60-
40-
20
40
60
80
100
120
140
m/z
500
4000 3500
3000
2500
2000
1500
Wavenumber (cm-1)
1000
Propagation of uncertainty. You have a stock solution certified by the manufacturer to contain 150.0±0.03 µg SO42-/mL. You would like to dilute it by a factor of 100 to obtain 1.500 µg/mL. Calculate the uncertainty in the two methods of dilution below. Use the following uncertainty values for glassware:
Glassware
Uncertainty
(assume glassware has been calibrated and treat the values below as random error)
1.00 mL volumetric pipet
0.01 mL
10.00 mL volumetric pipet
0.02 mL
100.00 mL volumetric flask
0.08 mL
Transfer 10.00 mL with a volumetric pipet and dilute it to 100 mL with a volumetric flask. Then take 10.00 mL of the resulting solution and dilute it a second time with a 100 mL flask.
2. Transfer 1.00 mL with a volumetric pipet and dilute it to 100 mL with a volumetric flask.
Draw all resonance structures for the following ion:
CH₂
Draw all resonance structures on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars, including
charges where needed. The single bond is active by default.
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CONT
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Chapter 21 Solutions
Organic Chemistry; Modified MasteringChemistry with Pearson eText -- ValuePack Access Card; Study Guide and Student Solutions Manual for Organic Chemistry, Books a la Carte Edition (7th Edition)
Ch. 21.1 - Prob. 1PCh. 21.2 - Prob. 2PCh. 21.2 - Prob. 3PCh. 21.3 - Prob. 4PCh. 21.3 - Prob. 5PCh. 21.3 - Prob. 6PCh. 21.4 - Prob. 7PCh. 21.4 - Prob. 8PCh. 21.5 - Prob. 9PCh. 21.5 - Prob. 10P
Ch. 21.5 - Prob. 11PCh. 21.6 - Prob. 12PCh. 21.6 - Prob. 13PCh. 21.6 - Prob. 14PCh. 21.7 - Prob. 15PCh. 21.8 - Prob. 16PCh. 21.9 - Prob. 18PCh. 21.10 - Prob. 20PCh. 21.10 - Prob. 21PCh. 21.10 - Prob. 22PCh. 21.11 - Prob. 24PCh. 21.11 - Prob. 25PCh. 21.15 - Prob. 27PCh. 21.16 - Prob. 28PCh. 21.17 - Prob. 29PCh. 21.18 - Refer to Figure 20.5 to answer the following...Ch. 21 - Prob. 31PCh. 21 - Prob. 32PCh. 21 - Prob. 33PCh. 21 - Prob. 34PCh. 21 - Prob. 35PCh. 21 - Prob. 36PCh. 21 - Prob. 37PCh. 21 - Prob. 38PCh. 21 - Prob. 39PCh. 21 - Prob. 40PCh. 21 - Prob. 41PCh. 21 - Prob. 42PCh. 21 - Prob. 43PCh. 21 - Prob. 44PCh. 21 - The 1H NMR spectrum of D-glucose in D2O exhibits...Ch. 21 - Prob. 46PCh. 21 - Prob. 47PCh. 21 - Prob. 48PCh. 21 - Prob. 49PCh. 21 - Prob. 50PCh. 21 - Prob. 51PCh. 21 - Prob. 52PCh. 21 - Prob. 53PCh. 21 - Prob. 54PCh. 21 - Prob. 55PCh. 21 - A hexose is obtained when the residue of a shrub...Ch. 21 - Prob. 57PCh. 21 - Prob. 58PCh. 21 - Prob. 59PCh. 21 - Prob. 60PCh. 21 - Prob. 61PCh. 21 - Prob. 62PCh. 21 - Prob. 63PCh. 21 - Prob. 64PCh. 21 - Prob. 65PCh. 21 - Prob. 66P
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