(a)
Interpretation:
The explanation for
Concept introduction:
A method by which structure of compound is determined by the interaction between matter and
(b)
Interpretation:
The structures of desired product and actual product are to be drawn.
Concept introduction:
A method by which structure of compound is determined by the interaction between matter and electromagnetic radiation is called spectroscopy. A spectroscopic technique in which infrared radiation is used for structural study is called IR spectroscopy.
(c)
Interpretation:
The explanation for expected MS base peak at
Concept introduction:
A method by which structure of compound is determined by the interaction between matter and electromagnetic radiation is called spectroscopy. A spectroscopic technique in which electric ionizers are used for structural study is called mass spectroscopy.
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Chapter 15 Solutions
EP ORGANIC CHEMISTRY -MOD.MASTERING 18W
- When 1-bromobutane is treated with sodium acetate (CH3CO,Na), the major product for the reaction is an ester (CH;CO2CH2CH2CH2CH3). Explain how mass spectrometry and IR spectroscopy could be used to prove that the reaction has occurred and you no longer have the starting material.arrow_forwardWhich of the following molecules do you expect would be useful in quenching benzophenone photoreduction? Explain.Oxygen (S1 = 22 kcal/mol)9,10-Diphenylanthracene (T1 = 42 kcal/mol)trans-1,3-Pentadiene (T1 = 59 kcal/mol)Naphthalene (T1 = 61 kcal/mol)Biphenyl (T1 = 66 kcal/mol)Toluene (T1 = 83 kcal/mol)Benzene (T1 = 84 kcal/mol)arrow_forwardWhich of the following statements are true concerning product distribution in the halogenation of an alkane? I: Bromination yields a statistical distribution of products based on the number of each type of hydrogen atom II: Chlorination yields a statistical distribution of products based on the number of each type of hydrogen atom. III: Bromination does not yield a statistical distribution of products based on the number of each type of hydrogen atom. IV: Chlorination does not yield a statistical distribution of products based on the number of each type of hydrogen atom. O Statement I O Statement II O Statements III and IV O Statement IV O Statements I and II O Statement IIIarrow_forward
- Identify the C-H out-of-plane bending vibrations in the infrared spectrum of 4- methylcyclohexene. What structural information can be obtained from these bands?arrow_forwardWhen 1-bromobutane is treated with sodium acetate(CH3CO2Na), the major product for the reaction is an ester (CH3CO2CH2CH2CH2CH3). Explain how mass spectrometry and IR spectroscopy could be used to prove that the reaction has occurred and you no longer have the starting material.arrow_forwardI. Butyramide (C4H9NO) 100 `NH2 80 20 10 20 30 40 50 60 70 80 90 m/z Identify the structure and provide the mechanism that give rise to the peak at m/z 59. Relative Intensity 우arrow_forward
- 9-What is the structure of the compound that gives the following infrared spectrum? a- Alcohol b- aldehyde c- Ketone d-Alkene e- Carboxylic acid TRANSMETTANCE HIT-NO-1322 SCORE= [ BUTYRIC ACID C4H₂O₂ 4100 3000 ] SDBS-NO=1227 2000 MAVENUMBERIE IR-NIDA-01956 : LIQUID FILM M/M 1500 1000 500arrow_forwardThe mass spectrum of 2,3-dimethylpentane [(CH3)2CHCH(CH3)CH2CH3]shows fragments at m/z = 85 and 71. Propose possible structures for theions that give rise to these peaks.arrow_forward5- In a laboratory a student is intending to carry out a dehydration reaction of 1-methylcyclohexanol leading to the formation of 1-methylcyclohexene. After the end of the process, how will this student quantitatively determine, through infrared spectroscopy, that the reaction for the formation of the product occurred satisfactorily?arrow_forward
- How would you be able to use IR to tell whether the following reaction proceeded? OH 1) 2 CH3Li 2) H3O+ A new peak will appear at 1700 cm-¹. New peaks will appear between 2900-3000 cm-¹. The large peak at 3300 cm ¹ will disappear. The large peak at 3000 cm³¹ will disappear.arrow_forwardUsing infrared spectroscopy, how can salicylic acid be differentiated from acetylsalicylic acid (aspirin)? Acetylsalicylic acid will have two carbonyl (C=O) stretches at approximately 1) 1700 cm1. It will possess one C=O stretch at about 1680 cm1 for the carboxyl group which is present in both and one unique carbonyl stretch at 1725 cm 1 for the ester functional group. ст Salicylic acid will have two carbonyl (C=O) stretches at approximately 1700 2) cm. It will possess one C=O stretch at about 1680 cm for the carboxyl group which is present in both and one unique carbonyl stretch at 1725 cm1 for the ester functional group. 3) Acetylsalicylic acid and salicylic acid cannot be differentiated via IR spectroscopy as they have all the same stretches present. 3 4) Salicylic acid will have a unique aliphatic sp-hybridized C-H at approximately 3150-3050 cm 1.arrow_forwardWhich of the following molecules matches the given data? HDI = 5 IR (cm-1 ): 1724 (strong), 1604 (weak) UV-Vis: 283 nm ( benzene = 255 nm)arrow_forward
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