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Question 4 (2+1+1+4+2 = 10 marks) a) Draw the chemical structure of 2,6-dibromo-3,4-dimethylphenol. (2 marks) b)...
4. Provide resonance structure(s) for the following 5. Draw structure for: a) (2,3E)-3,4-dibromo-1-chloro-1,3-pentadiene b) E-3-bromo-2-hexene 27...
4. Provide resonance structure(s) for the following 5. Draw structure for: a) (2,3E)-3,4-dibromo-1-chloro-1,3-pentadiene b) E-3-bromo-2-hexene 27 Dashboard Calendar To Do Notifications Inbox
(2+2+2+1+2+1 = 10 marks) Question 5 Question 5 Continued The following spectroscopy questions relate to the...
(2+2+2+1+2+1 = 10 marks) Question 5 Question 5 Continued The following spectroscopy questions relate to the two molecules below, butan-1-ol and butanal In the C NMR spectrum for each molecule, how many signals would you expect to see? d) OH (2marks Butan-1-ol Butanal: a) Describe how infrared spectroscopy might be used to distinguish between butan-1-ol and butanal (2 marks i) Based on your answer to i) determine whether the 1C NMR spectrum below corresponds to butan 1-ol or butanal b)...
2. Examine the following Electrophilic Aromatic Substitution reaction. 1) Provide the number of 13C NMR signals...
2. Examine the following Electrophilic Aromatic Substitution reaction. 1) Provide the number of 13C NMR signals expected in both the reactant and the product. 2) Provide the carbocation intermediate that allowed the transformation to happen at that position. 3) This molecule is (ortho, meta, para) substituted (circle one). 4) Using resonance arrows show how that carbocation can be distributed (delocalized) to multiple locations on the arene ring system. 5) Predict a different structure that can form from this delocalization. FeBrg,...
Cart B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 3...
Cart B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 3 H HY Hmong CM 1 2. How many carbons in this compound are chiral, (bonded to 4 0 groups? 2 cox bons 3. Are the molecules superimposable? us, they axb. 4. Can this compound exist as a pair of enantiomers? 5. Which atom (according to IUPAC nomenclature) in the ring does the plane of symmetry cut in half? Carbon * 6. Draw trans-1,2-dibromocyclopentane and...
Part B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 2....
Part B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 2. How many carbons in this compound are chiral, (bonded to 4 different groups? 3. Are the molecules superimposable? 1. Can this compound exist as a pair of enantiomers? 5. Which atom (according to IUPAC nomenclature) in the ring does the plane of symmetry cut in half? 6. Draw trans-1,2-dibromocyclopentane and its mirror image below:
Name: Matriks No: Quiz 2 22 November 2019 CHM3201 Group 3 Question 1 (4 marks) Assign...
Name: Matriks No: Quiz 2 22 November 2019 CHM3201 Group 3 Question 1 (4 marks) Assign names for these structures according to IUPAC nomenclature. Assign stereochemistry where necessary. a) Br ÇI Hob) HN+CH2CH2CH3 OH Question 2 (7 marks) a) How many chiral carbons are presence in hexan-3,4-diol? Name: Matriks No: Quiz 2 22 November 2019 CHM3201 Group 3 Question 1 (4 marks) Assign names for these structures according to IUPAC nomenclature. Assign stereochemistry where necessary a) How C4,CH.CH Question 2...
1.) Give the 1) structure and 2) correct IUPAC name for the molecule: 2,6-diethyl-6-methyl-4-propyl-2-heptene 2.) a)...
1.) Give the 1) structure and 2) correct IUPAC name for the molecule: 2,6-diethyl-6-methyl-4-propyl-2-heptene 2.) a) Draw the Lewis structure of the following two compounds. b) Give the hybridization of each carbon, listed from left to right, for each compound. c) Which substance will be more soluble in a polar substance (such as water)? CHCCOCH3 CH2CHCH2CH2OH 3.) A 0.500-g sample of iodine-131 is obtained by a hospital. How much will remain after a period of one week? The...
Problem set 2: (25 marks) In this problem you have to elucidate the structure of product B. A substrate A (str...
Problem set 2: (25 marks) In this problem you have to elucidate the structure of product B. A substrate A (structure shown in scheme 1) which was subjected to two consecutive reactions as shown in scheme 1 below to give the product B of molecular formula CsH14Br2. Provide the structure for Product B based on the NMR data provided (attachment 2: Problem set 2). (The 1H NMR and 13C NMR of starting substrate A has been provided for reference purpose...
PART 3 For each set of data on pages 5-9, calculate and record the degree of...
PART 3 For each set of data on pages 5-9, calculate and record the degree of unsaturation. Then use your problem solving skills to determine the chemical structure that is consistent with ALL of the data on each page. You are not required to label the spectra (but feel free to do so). This entire assignment is to be completed independently Suggestion for a general method to determine a chemical structure based on the provided molecular formula, IR, H-NMR and...
1. In the H NMR, draw the structure of the molecule directly on the spectrum and...
1. In the H NMR, draw the structure of the molecule directly on
the spectrum and identify each unique proton. Indicate which proton
is responsible for each peak.
2. In the IR spectrum, indicate which functional group is
responsible for each important peak. Attempt to identify at least
five important peaks. In you discussion, indicate which peaks are
most helpful in determining whether or not you converted the
starting material to the desired product.
3. Compare the IR spectrum of...
4. Provide resonance structure(s) for the following 5. Draw structure for: a) (2,3E)-3,4-dibromo-1-chloro-1,3-pentadiene b) E-3-bromo-2-hexene 27 Dashboard Calendar To Do Notifications Inbox
(2+2+2+1+2+1 = 10 marks) Question 5 Question 5 Continued The following spectroscopy questions relate to the two molecules below, butan-1-ol and butanal In the C NMR spectrum for each molecule, how many signals would you expect to see? d) OH (2marks Butan-1-ol Butanal: a) Describe how infrared spectroscopy might be used to distinguish between butan-1-ol and butanal (2 marks i) Based on your answer to i) determine whether the 1C NMR spectrum below corresponds to butan 1-ol or butanal b)...
2. Examine the following Electrophilic Aromatic Substitution reaction. 1) Provide the number of 13C NMR signals expected in both the reactant and the product. 2) Provide the carbocation intermediate that allowed the transformation to happen at that position. 3) This molecule is (ortho, meta, para) substituted (circle one). 4) Using resonance arrows show how that carbocation can be distributed (delocalized) to multiple locations on the arene ring system. 5) Predict a different structure that can form from this delocalization. FeBrg,...
Cart B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 3 H HY Hmong CM 1 2. How many carbons in this compound are chiral, (bonded to 4 0 groups? 2 cox bons 3. Are the molecules superimposable? us, they axb. 4. Can this compound exist as a pair of enantiomers? 5. Which atom (according to IUPAC nomenclature) in the ring does the plane of symmetry cut in half? Carbon * 6. Draw trans-1,2-dibromocyclopentane and...
Part B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 2. How many carbons in this compound are chiral, (bonded to 4 different groups? 3. Are the molecules superimposable? 1. Can this compound exist as a pair of enantiomers? 5. Which atom (according to IUPAC nomenclature) in the ring does the plane of symmetry cut in half? 6. Draw trans-1,2-dibromocyclopentane and its mirror image below:
Name: Matriks No: Quiz 2 22 November 2019 CHM3201 Group 3 Question 1 (4 marks) Assign names for these structures according to IUPAC nomenclature. Assign stereochemistry where necessary. a) Br ÇI Hob) HN+CH2CH2CH3 OH Question 2 (7 marks) a) How many chiral carbons are presence in hexan-3,4-diol? Name: Matriks No: Quiz 2 22 November 2019 CHM3201 Group 3 Question 1 (4 marks) Assign names for these structures according to IUPAC nomenclature. Assign stereochemistry where necessary a) How C4,CH.CH Question 2...
Problem set 2: (25 marks) In this problem you have to elucidate the structure of product B. A substrate A (structure shown in scheme 1) which was subjected to two consecutive reactions as shown in scheme 1 below to give the product B of molecular formula CsH14Br2. Provide the structure for Product B based on the NMR data provided (attachment 2: Problem set 2). (The 1H NMR and 13C NMR of starting substrate A has been provided for reference purpose...
PART 3 For each set of data on pages 5-9, calculate and record the degree of unsaturation. Then use your problem solving skills to determine the chemical structure that is consistent with ALL of the data on each page. You are not required to label the spectra (but feel free to do so). This entire assignment is to be completed independently Suggestion for a general method to determine a chemical structure based on the provided molecular formula, IR, H-NMR and...
1. In the H NMR, draw the structure of the molecule directly on
the spectrum and identify each unique proton. Indicate which proton
is responsible for each peak.
2. In the IR spectrum, indicate which functional group is
responsible for each important peak. Attempt to identify at least
five important peaks. In you discussion, indicate which peaks are
most helpful in determining whether or not you converted the
starting material to the desired product.
3. Compare the IR spectrum of...
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