Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Textbook Question
Chapter 15.2, Problem 5P
There are three carbon-oxygen bonds in methyl acetate.
- a. What are their relative bond lengths?
- b. What are the relative infrared (IR) stretching frequencies of these bonds?
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At what wavelength does the molecule radiate from the excited state to the ground state?
A. Shorter than absorbed radiationB. Longer than absorbed radiationC. A and B bothD. None
True or False
1. Sample preparation of infrared spectroscopy uses KBr as the blank because Kbr has 100% transmittance at the IR wavelength range.
2. The electronegativity difference present in a dipole moment within a bond is directly proportional to the electromagnetic field produced.
3. The electromagnetic radiation that is emitted in infrared spectroscopy is not enough to excite electrons to an unoccupied molecular orbital.
A. Choose the letter of the best answer.
1. What is a saturated hydrocarbon?
A. Any compound consisting of carbon and hydrogen only.
B. Any compound consisting of carbon and hydrogen and oxygen only.
C. Any compound consisting of carbon and hydrogen only, in which some of the carbon atoms are
joined to each other by double or triple bonds.
D. Any compound consisting of carbon and hydrogen only, in which all the carbon atoms are
joined to each other by single bonds.
2. What kind of hydrocarbon is C3H14?
A. alkane
C. alkyne
B. alkene
D. alcohol
H.
H
H.
3. This molecule
is an example of an...
H.
A. alkane
C. alkyne
B. alkene
D. alcohol
4. Which is an example of an ether?
А. CН3ОН
B. CH3CH2CH2CI
C. CH3CH2OCH2CH3
D. CH3CH2COOCH3
5. What is the simplest organic compound?
A. methane
C. ethanol
B. acetone
D. ethane
Chapter 15 Solutions
Organic Chemistry (8th Edition)
Ch. 15.1 - The aromas of many flowers and fruits are due to...Ch. 15.1 - Name the following:Ch. 15.1 - Prob. 3PCh. 15.2 - Which is longer, the carbon-oxygen single bond in...Ch. 15.2 - There are three carbon-oxygen bonds in methyl...Ch. 15.2 - Prob. 6PCh. 15.4 - a. What is the product of the reaction of acetyl...Ch. 15.4 - What is the product of an acyl substitution...Ch. 15.5 - a. Which compound has the stretching vibration for...Ch. 15.5 - Using the pKa values listed in Table 15.1, predict...
Ch. 15.5 - Is the following statement true or false? If the...Ch. 15.6 - Starting with acetyl chloride, what neutral...Ch. 15.6 - Prob. 13PCh. 15.7 - Starting with methyl acetate, what neutral...Ch. 15.7 - We saw that it is necessary to use excess amine in...Ch. 15.7 - Prob. 17PCh. 15.7 - Which ester hydrolyzes more rapidly? a. methyl...Ch. 15.7 - a. state three factors that cause the uncatalyzed...Ch. 15.8 - Prob. 21PCh. 15.8 - Using the mechanism for the acid-catalyzed...Ch. 15.8 - Prob. 23PCh. 15.8 - Show the mechanism for the acid-catalyzed...Ch. 15.8 - Prob. 25PCh. 15.8 - Write the mechanism for the acid-catalyzed...Ch. 15.8 - Write the mechanism for the acid-catalyzed...Ch. 15.9 - Prob. 28PCh. 15.9 - Prob. 29PCh. 15.10 - Show how each of the following esters could he...Ch. 15.10 - Prob. 32PCh. 15.11 - Prob. 33PCh. 15.11 - Which of the following reactions leads to the...Ch. 15.12 - Prob. 35PCh. 15.12 - Prob. 36PCh. 15.13 - Prob. 37PCh. 15.14 - Prob. 38PCh. 15.14 - Prob. 39PCh. 15.15 - Prob. 40PCh. 15.15 - Which alkyl halides from the carboxylic acids...Ch. 15.16 - Prob. 43PCh. 15.16 - Prob. 44PCh. 15.16 - Prob. 45PCh. 15.17 - Prob. 46PCh. 15.18 - How could you synthesize the following compounds...Ch. 15 - Prob. 48PCh. 15 - Name the following:Ch. 15 - Prob. 50PCh. 15 - What compound are obtained from the fallowing...Ch. 15 - a. Rank the following esters in order of...Ch. 15 - Because bromocyclohexane is a secondary alkyl...Ch. 15 - a. Which compound would you expect to have a...Ch. 15 - How could you use 1H NMR spectroscopy to...Ch. 15 - Rank the following compounds in order of...Ch. 15 - Prob. 57PCh. 15 - Prob. 58PCh. 15 - Prob. 59PCh. 15 - A compound with molecular formula C5H10O2 gives...Ch. 15 - Prob. 61PCh. 15 - Prob. 62PCh. 15 - Prob. 63PCh. 15 - Prob. 64PCh. 15 - Prob. 65PCh. 15 - Prob. 66PCh. 15 - Two products, A and B, are obtained from the...Ch. 15 - Prob. 68PCh. 15 - Prob. 69PCh. 15 - Prob. 70PCh. 15 - Prob. 71PCh. 15 - Prob. 72PCh. 15 - When treated with an equivalent of methanol,...Ch. 15 - a. Identify the two products obtained from the...Ch. 15 - Prob. 75PCh. 15 - Prob. 76PCh. 15 - a. When a carboxylic acid is dissolved in...Ch. 15 - Prob. 78PCh. 15 - Identity the major and minor products of the...Ch. 15 - When a compound with molecular formula C11H14O2...Ch. 15 - Prob. 81PCh. 15 - Prob. 82PCh. 15 - Prob. 83PCh. 15 - The 1H NMR spectra for two esters with molecular...Ch. 15 - Show how the following compounds could be prepared...Ch. 15 - Prob. 86PCh. 15 - Prob. 87PCh. 15 - The intermediate shown here is formed during the...Ch. 15 - Prob. 89PCh. 15 - Propose a mechanism that accounts for the...Ch. 15 - Catalytic antibodies catalyze a reaction by...Ch. 15 - Prob. 92P
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- 2. According to the Beer-Lambert law absorbance is proportional to concentration at each wavelength. In principle, one could choose any wavelength for quantitative estimations of concentration. However, we generally select the wavelength of maximum absorbance for a given sample and use it in our absorbance measurements. Especially, one should avoid the steep portions of the spectrum. Why? 3. Which concentration range a dilute or a concentrated one - is chosen for accurate determinations of unknown concentrations?arrow_forwardConsider the explanation in the Introduction regarding the determination of qrxn, and answer the following questions about the reactions that you will be performing in this experiment. Part A: How are qsoln and qrxn related to one another? A.)They are equal B.)They are unrelated C.)-qsoln = qrxn Part B) Consider the explanation in the Introduction regarding the determination of qrxn, and answer the following questions about the reactions that you will be performing in this experiment. Based on your answers to the previous questions, Will qrxn be a positive or negative quantity? A.) Positive B.) Negative C.) Zero Part C). A student observed that, when 0.243 g of magnesium was added to 100.0 g of hydrochloric acid, the temperature of the solution increased 11.2 °C. Without doing any calculations, what observations can you make to determine if this reaction was endothermic or exothermic? Select the best pairing of reasonable observation and conclusion. Group of answer…arrow_forward4. Identify which of the structures below correspond to a. b. C. d. CH,CH,CH,CH(CH3)2 f. (CH3)2(CH2)2CH(CH3)2 (CH3)2CH₂CH₂CH(CH3)2 CH3(CH2)2CH(CH3)2 e. g. h. H H H H—C—C—C—C | H H H с H H H I C-H CIHarrow_forward
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IR Spectroscopy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=_TmevMf-Zgs;License: Standard YouTube License, CC-BY