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Which structures are those compounds that contain a benzene ring and have molecular ions in the...
zene, C6H6? 12-23 Propose structures for compounds that fit the following data: al A ketone with M+ 86 and fragments...
zene, C6H6? 12-23 Propose structures for compounds that fit the following data: al A ketone with M+ 86 and fragments at m/z 71 and m/z 43 h An alcohol with M+ = 88 and fragments at m/z 73, m/z 70, and m/z = 59 12-24 2-Methylpentane (C6H14) has the mass spectrum shown. Which peak represents M+? Which is the base peak? Propose structures for frag- ment ions of m/z 71, 57, 43, and 29. Why does the base peak have...
21. Which of the following is NOT a m-directing substituent when present on the benzene ring...
21. Which of the following is NOT a m-directing substituent when present on the benzene ring (a)-NHCOCH3 (b) –NO2 (c) –N(CH3)3+ (d)-CN 23. The relationship of propanone and propen-2-ol is called (a) tautomers (b) conformational isomers (c)distereomers (d)resonance structures 24. Which reagent can be used to distinguish an aldehyde and a ketone? (a) Br2/CCl4 (b) KMnO4/OH- (c) Ag2O/NH4OH (d)None of these 25. The proper name for the molecule below is: (a) 2-chloro-5-aldehydotoluene (b) 6—chloro-3-aldehydotoluene (c) 3-methyl-4-chloro-benzaldehyde (d) 4-chloro-3-methylbenzaldehyde
Part 2: 1. Draw the Lewis dot structures for the following two ring-shaped molecules: 2. Construct...
Part 2: 1. Draw the Lewis dot structures for the following two ring-shaped molecules: 2. Construct 3-D physical models for eyclohesane and benzene. Name the molecular geometry around each carbon atom in: a· cyclohexane: b. benzene: 3. Vanillin is the chemical compound responsible for most of the flavor and aroma of vanilla. A vanillin molecule is shown below a. Write the molecular formala for vanillin: b. Are there any lone pairs in this molecule? Draw them on the figure below....
The low-resolution mass spectrum of an unknown monosubstituted benzene showed a molecular ion (M+) peak at...
The low-resolution mass spectrum of an unknown monosubstituted benzene showed a molecular ion (M+) peak at m/z 150. Combustion analysis of a sample of this compound indicated that the compound contained C, H, and O only and had an empirical formula of C3H1002. The IR spectrum of the unknown compound is shown below. The 'H NMR spectrum of the unknown compound did not show a peak in the 9.10 ppm range. D 4000 9000 2000 1500 1000 RAVENUGERII What is...
3. Draw Lewis symbols or structures for the following atoms, ions, or compounds. (a) Cs (b) MgCl2 (c) Se (d) CN- (e)...
3. Draw Lewis symbols or structures for the following atoms, ions, or compounds. (a) Cs (b) MgCl2 (c) Se (d) CN- (e) P? 1. Identify polar covalent bonds or ionic bonds formed in the binary compounds below. (a) C and S (b) Al and CI (c) C and o (d) Ca and o Calcollowing molecules and
help with part 2 please!! 11) Cyclohexene and hex-2-yne both have the molecular formula, C6H10. (5...
help with part 2 please!!
11) Cyclohexene and hex-2-yne both have the molecular formula, C6H10. (5 points) a) How would you use infrared spectroscopy to distinguish between the two compounds? b) Match the mass spectrum to the compounds and how could the mass spectrum be used to distinguish between the two compounds? 300- Relative Intensity Relative Intensity m/2 500 m/z
please explain the correct answer. thank you! Name: 10. Based on the following structures, answer the...
please explain the correct answer. thank you!
Name: 10. Based on the following structures, answer the following questions on mass spectroscopy. (12 points) OH Br a) Which compound would likely show a M-18 ion? b) Which compound's mass spectrum shows peaks at M and M+2 whose abundances are in the ratio of 3:1? c) Which compound's ion would undergo McLafferty rearrangement? d) Which compounds' ions would undergo a-cleavage? Choose all that apply. B C D E
I'm not sure how to do the three cationic structures b. The following mass spectrum corresponds...
I'm not sure how to do the three cationic
structures
b. The following mass spectrum corresponds to a ketone. Determine two possible molecular formulas and their corresponding degrees of unsaturation for the compound. Additionally, provide the cationic structures corresponding to the indicated ions in the table below. Hint: There are a few ketones that have this same mass. Be sure to provide a structure that is reasonable given a base peak at 43 m/z. M+ (amu) C. H and o...
3/26/2020 Name! 1. Which of the m/z values correspond to the molecular ion for the following...
3/26/2020 Name! 1. Which of the m/z values correspond to the molecular ion for the following compound? a. 18 b. 82 C 102 d. 103 2. Which of the m/z values correspond to the molecular ion peak in the following mass spectrum? 100- Intensity miz a. 45 c. d. 29 15 3. Which of the following will produce an M** and an (M+2)** of the same intensity? a. Nitrogen b. Chlorine c. Bromine d. lodine 4. Which of the following...
There are three salts that contain octahedral complex ions of chromium and have the molecular formula...
There are three salts that contain octahedral complex ions of chromium and have the molecular formula CrCl 6 H20. Treating 0.27 g of the first salt with a strong dehydrating agent resulted in a mass loss of 0.036 g. Treating 270 mg of the second salt with the same dehydrating agent resulted in a mass loss of 18 mg. The third salt did not lose any mass when treated with the same dehydrating agent. Addition of excess aqueous silver nitrate...
zene, C6H6? 12-23 Propose structures for compounds that fit the following data: al A ketone with M+ 86 and fragments at m/z 71 and m/z 43 h An alcohol with M+ = 88 and fragments at m/z 73, m/z 70, and m/z = 59 12-24 2-Methylpentane (C6H14) has the mass spectrum shown. Which peak represents M+? Which is the base peak? Propose structures for frag- ment ions of m/z 71, 57, 43, and 29. Why does the base peak have...
Part 2: 1. Draw the Lewis dot structures for the following two ring-shaped molecules: 2. Construct 3-D physical models for eyclohesane and benzene. Name the molecular geometry around each carbon atom in: a· cyclohexane: b. benzene: 3. Vanillin is the chemical compound responsible for most of the flavor and aroma of vanilla. A vanillin molecule is shown below a. Write the molecular formala for vanillin: b. Are there any lone pairs in this molecule? Draw them on the figure below....
The low-resolution mass spectrum of an unknown monosubstituted benzene showed a molecular ion (M+) peak at m/z 150. Combustion analysis of a sample of this compound indicated that the compound contained C, H, and O only and had an empirical formula of C3H1002. The IR spectrum of the unknown compound is shown below. The 'H NMR spectrum of the unknown compound did not show a peak in the 9.10 ppm range. D 4000 9000 2000 1500 1000 RAVENUGERII What is...
3. Draw Lewis symbols or structures for the following atoms, ions, or compounds. (a) Cs (b) MgCl2 (c) Se (d) CN- (e) P? 1. Identify polar covalent bonds or ionic bonds formed in the binary compounds below. (a) C and S (b) Al and CI (c) C and o (d) Ca and o Calcollowing molecules and
help with part 2 please!!
11) Cyclohexene and hex-2-yne both have the molecular formula, C6H10. (5 points) a) How would you use infrared spectroscopy to distinguish between the two compounds? b) Match the mass spectrum to the compounds and how could the mass spectrum be used to distinguish between the two compounds? 300- Relative Intensity Relative Intensity m/2 500 m/z
please explain the correct answer. thank you!
Name: 10. Based on the following structures, answer the following questions on mass spectroscopy. (12 points) OH Br a) Which compound would likely show a M-18 ion? b) Which compound's mass spectrum shows peaks at M and M+2 whose abundances are in the ratio of 3:1? c) Which compound's ion would undergo McLafferty rearrangement? d) Which compounds' ions would undergo a-cleavage? Choose all that apply. B C D E
I'm not sure how to do the three cationic
structures
b. The following mass spectrum corresponds to a ketone. Determine two possible molecular formulas and their corresponding degrees of unsaturation for the compound. Additionally, provide the cationic structures corresponding to the indicated ions in the table below. Hint: There are a few ketones that have this same mass. Be sure to provide a structure that is reasonable given a base peak at 43 m/z. M+ (amu) C. H and o...
3/26/2020 Name! 1. Which of the m/z values correspond to the molecular ion for the following compound? a. 18 b. 82 C 102 d. 103 2. Which of the m/z values correspond to the molecular ion peak in the following mass spectrum? 100- Intensity miz a. 45 c. d. 29 15 3. Which of the following will produce an M** and an (M+2)** of the same intensity? a. Nitrogen b. Chlorine c. Bromine d. lodine 4. Which of the following...
There are three salts that contain octahedral complex ions of chromium and have the molecular formula CrCl 6 H20. Treating 0.27 g of the first salt with a strong dehydrating agent resulted in a mass loss of 0.036 g. Treating 270 mg of the second salt with the same dehydrating agent resulted in a mass loss of 18 mg. The third salt did not lose any mass when treated with the same dehydrating agent. Addition of excess aqueous silver nitrate...
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