Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Chapter 12.SE, Problem 25AP
Assume that you are in a laboratory carrying out the catalytic hydrogenation of cyclohexene to cyclohexane. How could you use a mass spectrometer to determine when the reaction is finished?
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Use the following reagent table for the reaction of :
cyclohexanol + H2 SO4 → cyclohexene
Chemical
MW (g/mol) Density (g/mL) mmols used
Amount used
cyclohexanol
100.16
0.9624
1.50 mL
Sulfuric Acid
98.08
1.83
1.00 mL
cyclohexene
82.14
Using the information from the previous questions, if 0.95 g of cyclohexene were
formed during the reaction, determine the % yield. Answer with 2 decimal places.
Given the following reaction:
о
+ Br₂
Br
+ HBr
Calculate the mass (g) of bromocyclohexane produced given that 1.08 mL of
cyclohexane (density 0.779g/mL) is reacted with 1.42 mL of 0.76 M bromine. Give
your answer to 3 places after the decimal.
recall vol(mL) x density(g/mL) = g
Hint: this is a limiting reactant problem!
4
Why would the chemical equation 1 B2(CO3)3 →1 B2O3+3 CO2 be considered “wrong”?
Chapter 12 Solutions
Organic Chemistry
Ch. 12.2 - Prob. 1PCh. 12.2 - Two mass spectra are shown in FIGURE 12-8. One...Ch. 12.3 - What are the masses of the charged fragments...Ch. 12.3 - Prob. 4PCh. 12.5 - Prob. 5PCh. 12.5 - Prob. 6PCh. 12.7 - What functional groups might the following...Ch. 12.7 - How might you use IR spectroscopy to distinguish...Ch. 12.8 - Prob. 9PCh. 12.8 - Where might the following compounds have IR...
Ch. 12.8 - Where might the following compound have IR...Ch. 12.SE - Prob. 12VCCh. 12.SE - Show the structures of the fragments you would...Ch. 12.SE - Propose structures for compounds that fit the...Ch. 12.SE - Write molecular formulas for compounds that show...Ch. 12.SE - Camphor, a saturated monoketone from the Asian...Ch. 12.SE - The nitrogen rule of mass spectrometry says that a...Ch. 12.SE - In light of the nitrogen rule mentioned in Problem...Ch. 12.SE - Nicotine is a diamino compound isolated from dried...Ch. 12.SE - The hormone cortisone contains C, H, and O, and...Ch. 12.SE - Halogenated compounds are particularly easy to...Ch. 12.SE - Prob. 22APCh. 12.SE - Propose structures for compounds that fit the...Ch. 12.SE - 2-Methylpentane (C6H14) has the mass spectrum...Ch. 12.SE - Assume that you are in a laboratory carrying out...Ch. 12.SE - What fragments might you expect in the mass...Ch. 12.SE - How might you use IR spectroscopy to distinguish...Ch. 12.SE - Would you expect two enantiomers such as...Ch. 12.SE - Would you expect two diastereomers such as meso-2,...Ch. 12.SE - Propose structures for compounds that meet the...Ch. 12.SE - How could you use infrared spectroscopy to...Ch. 12.SE - Prob. 32APCh. 12.SE - At what approximate positions might the following...Ch. 12.SE - How would you use infrared spectroscopy to...Ch. 12.SE - At what approximate positions might the following...Ch. 12.SE - Assume that you are carrying out the dehydration...Ch. 12.SE - Assume that you are carrying out the base-induced...Ch. 12.SE - Prob. 38APCh. 12.SE - Carvone is an unsaturated ketone responsible for...Ch. 12.SE - Prob. 40APCh. 12.SE - The mass spectrum (a) and the infrared spectrum...Ch. 12.SE - The mass spectrum (a) and the infrared spectrum...Ch. 12.SE - Propose structures for compounds that meet the...Ch. 12.SE - 4-Methyl-2-pentanone and 3-methylpentanal are...Ch. 12.SE - Grignard reagents undergo a general and very...Ch. 12.SE - Ketones undergo a reduction when treated with...Ch. 12.SE - Nitriles, R–=C≡N, undergo a hydrolysis...Ch. 12.SE - The infrared spectrum of the compound with the...Ch. 12.SE - The infrared spectrum of the compound with the...Ch. 12.SE - Prob. 50AP
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