Homework Answers
It can deprotonate H-D proton easily. The Ka of carboxylic protons is very high and they have less pKa value. So it can easily be deprotonated.
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There a 4 hydrogens in the molecule below that are labeled with a letter. Which of...
6. a. Which of the two labeled H atoms in each molecule absorbs farther downfield in...
6. a. Which of the two labeled H atoms in each molecule absorbs farther downfield in 'H nmr? 0 H20-C-H b. Which of the two labeled C atoms in each molecule absorbs farther downfield in SC nmr? 0 0 H:O-C-H 7. The molecule shown below (directly above the spectrum) has four diffeent Hs (labeled A-D). ts 'H spectrum has four different nmr signals (labeled #1-#4). many neighbors? Hydrogen D matches signal # -. If you are undecided, look a. Hydrogens...
Which statements are TRUE about the retrosynthesis of the molecule below. Choose the answer option that...
Which statements are TRUE about the retrosynthesis of the molecule below. Choose the answer option that statements. A. The molecule can be made in one step using Friedel Crafts Alkylation B. The molecule can be made in one step using Friedel Crafts Acylation C. The molecule could be prepared using a Grignard reagent and CO2 D. The molecule could be prepared from a nitrile E. The molecule cannot be prepared from acetylene F. The molecule could be prepared from oxidation...
Proton (1H) NMR spectroscopy can provide which of the following pieces of information? (More than one...
Proton (1H) NMR spectroscopy can provide which of the following pieces of information? (More than one choice may be correct.) Select one or more: a. The number of hydrogens that correspond to a given signal. b. The degree of unsaturation present in the molecule. O c. The number of unique hydrogens in the molecule. d. Information concerning the type of chemical environment for each hydrogen signal. e. How many hydrogens are on adjacent carbon atoms. f. The molar mass of...
Which of the following functional groups will be found in the molecule, LSD, shown below? (a)...
Which of the following functional groups will be found in the molecule, LSD, shown below? (a) Amine (b) Alkene (c) Ether (g) Benzene D (h) Alcohol 0) Ester Select all possible options that apply. (d) Alkyne (e) Amide (f) Ketone (1) Carboxylic Acid (k) Aldehyde
Can you please explain why For each compound below, circle the letter which corresponds to the...
Can
you please explain why
For each compound below, circle the letter which corresponds to the best description of its reactivity in electrophilic aromatic substitution (a) More reactive than Ph-OMe (b) More reactive than Ph-O-CO-Me but less than PhoMe (c) More reactive than Ph-H but less than PhO-CO-Me (d) Less reactive than Ph-H but more than Ph-CO2H (e) Less reactive than Ph-CO2H a a b b c c d d e e 16. 17. 18. 19. Ph-NH2 is Ph-N"Mez is...
Part A H,0 (100°C) has a higher boiling point than CH, OH (65°C). There are more...
Part A H,0 (100°C) has a higher boiling point than CH, OH (65°C). There are more hydrogen bonds between water molecules than between alcohol molecules. There are less hydrogen bonds between water molecules than between alcohol molecules. CH, OH has the higher molecular mass than H,O. There are no hydrogen bonds between alcohol molecules while there are plenty of them between water molecules. O Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B H,O (100°C)...
4) All signals in the 'H NMR below correspond to particular hydrogens in the molecule. Assign...
4) All signals in the 'H NMR below correspond to particular hydrogens in the molecule. Assign the NMR spectrum by labeling each proton in the molecule with the appropriate lettered signal. OMe 3H, S HO 3H, S 4H, m 1H, s 1H, br PPM 6H, d 3H, d 2H, S 3H, m 1H, q1H, sept PPM
Below is molecule 1. Provide the relationship between the indicated protons below, either diastereotopic or identical...
Below is molecule 1. Provide the relationship between the
indicated protons below, either diastereotopic or identical and
then answer the remaining questions about the molecule. Molecule 1
has been drawn with all of the hydrogens and with none of them
drawn out.
1) Below is molecule 1. Provide the relationship between the indicated protons below, either diastereotopic or identical and then answer the remaining questions about the molecule. Molecule 1 has been drawn with all of the hydrogens and with...
Given the transition state below and K1, select the letter (W - Z) that corresponds to:...
Given the transition state below and K1, select the letter (W - Z) that corresponds to: Transition state W) water X) ammonia Y) ammonium ion Z hydronium ion 0- 30--.. acid + base conjugate base + conjugate acid You should be able to determine this without pK, data Since the atoms involved are in the same period, the less electronegative atom will be more stable as the cation A) acid (on reactant side) N<XE B) base (on reactant side) o...
of the five labeled protons in this molecule, which do you expect would have the highest...
of the five labeled protons in this molecule, which do you
expect would have the highest and the lowest chemical shift?
Question 8 Of the five labeled protons in this molecule, which do you expect would have the highest and the lowest chemical shift (8)? U III H Η Η Η C C-C-CH3 H F H I highest; IV lowest V highest; I lowest V highest; IV lowest I highest; V lowest II highest; III lowest Oll highest; IV lowest...
6. a. Which of the two labeled H atoms in each molecule absorbs farther downfield in 'H nmr? 0 H20-C-H b. Which of the two labeled C atoms in each molecule absorbs farther downfield in SC nmr? 0 0 H:O-C-H 7. The molecule shown below (directly above the spectrum) has four diffeent Hs (labeled A-D). ts 'H spectrum has four different nmr signals (labeled #1-#4). many neighbors? Hydrogen D matches signal # -. If you are undecided, look a. Hydrogens...
Which statements are TRUE about the retrosynthesis of the molecule below. Choose the answer option that statements. A. The molecule can be made in one step using Friedel Crafts Alkylation B. The molecule can be made in one step using Friedel Crafts Acylation C. The molecule could be prepared using a Grignard reagent and CO2 D. The molecule could be prepared from a nitrile E. The molecule cannot be prepared from acetylene F. The molecule could be prepared from oxidation...
Proton (1H) NMR spectroscopy can provide which of the following pieces of information? (More than one choice may be correct.) Select one or more: a. The number of hydrogens that correspond to a given signal. b. The degree of unsaturation present in the molecule. O c. The number of unique hydrogens in the molecule. d. Information concerning the type of chemical environment for each hydrogen signal. e. How many hydrogens are on adjacent carbon atoms. f. The molar mass of...
Which of the following functional groups will be found in the molecule, LSD, shown below? (a) Amine (b) Alkene (c) Ether (g) Benzene D (h) Alcohol 0) Ester Select all possible options that apply. (d) Alkyne (e) Amide (f) Ketone (1) Carboxylic Acid (k) Aldehyde
Can
you please explain why
For each compound below, circle the letter which corresponds to the best description of its reactivity in electrophilic aromatic substitution (a) More reactive than Ph-OMe (b) More reactive than Ph-O-CO-Me but less than PhoMe (c) More reactive than Ph-H but less than PhO-CO-Me (d) Less reactive than Ph-H but more than Ph-CO2H (e) Less reactive than Ph-CO2H a a b b c c d d e e 16. 17. 18. 19. Ph-NH2 is Ph-N"Mez is...
Part A H,0 (100°C) has a higher boiling point than CH, OH (65°C). There are more hydrogen bonds between water molecules than between alcohol molecules. There are less hydrogen bonds between water molecules than between alcohol molecules. CH, OH has the higher molecular mass than H,O. There are no hydrogen bonds between alcohol molecules while there are plenty of them between water molecules. O Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B H,O (100°C)...
4) All signals in the 'H NMR below correspond to particular hydrogens in the molecule. Assign the NMR spectrum by labeling each proton in the molecule with the appropriate lettered signal. OMe 3H, S HO 3H, S 4H, m 1H, s 1H, br PPM 6H, d 3H, d 2H, S 3H, m 1H, q1H, sept PPM
Below is molecule 1. Provide the relationship between the
indicated protons below, either diastereotopic or identical and
then answer the remaining questions about the molecule. Molecule 1
has been drawn with all of the hydrogens and with none of them
drawn out.
1) Below is molecule 1. Provide the relationship between the indicated protons below, either diastereotopic or identical and then answer the remaining questions about the molecule. Molecule 1 has been drawn with all of the hydrogens and with...
Given the transition state below and K1, select the letter (W - Z) that corresponds to: Transition state W) water X) ammonia Y) ammonium ion Z hydronium ion 0- 30--.. acid + base conjugate base + conjugate acid You should be able to determine this without pK, data Since the atoms involved are in the same period, the less electronegative atom will be more stable as the cation A) acid (on reactant side) N<XE B) base (on reactant side) o...
of the five labeled protons in this molecule, which do you
expect would have the highest and the lowest chemical shift?
Question 8 Of the five labeled protons in this molecule, which do you expect would have the highest and the lowest chemical shift (8)? U III H Η Η Η C C-C-CH3 H F H I highest; IV lowest V highest; I lowest V highest; IV lowest I highest; V lowest II highest; III lowest Oll highest; IV lowest...
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