I need help solving these for practice. I would like a short explanation for the answer choice. thank you.
![14. [10pts] For the molecule shown below, identify all the distinct sets of protons and indicate the splitting pattern of each signal. CH OH H3C CH 15. 15pts] For the molecule below, predict the structure and mass of any 2 significant fragments in mass spectrometry CH OH](http://img.homeworklib.com/questions/778bd940-a7c4-11eb-a1cc-51ad99fd6ff6.png?x-oss-process=image/resize,w_560)
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I need help solving these for practice. I would like a short
explanation for the answer...
For NMR Structure of following compounds: Why splitting is like this?Why chemical shifts are like this?So...
For NMR Structure of following compounds:
Why splitting is like this?Why chemical shifts are like this?So
i have the answer of this question here.But i need detailed
explanation.
(a) Sketch the 'H NMR spectrum you would expect for the following compounds, showing the splitting patterns, chemical shifts and integration of each signal. Explain in detail. (40P) OH CI CH(CH3)2 4-isopropylphenol H3C OH 3-chloro-2-buten-1-ol 9.06 ОН 6.68 6.68 7.22 27.22 12.87 120 120 10 PPM Two CH3 groups appear as doublet...
I need help with this one For the protons labeled Ha and Hb in the structure...
I need help with this one
For the protons labeled Ha and Hb in the structure below, predict the characteristics of their signals in the 1H NMR spectrum: the approximate chemical shift, the splitting pattern, and the integration value. Approximate chemical shift Splitting Integration value
1. Signal Assignment. Below are a set of ranges where a specific H' NMR signal might...
1. Signal Assignment. Below are a set of ranges where a specific H' NMR signal might be found. 0.5-2.0ppm 2.0-3.0ppm 3.0-5.Oppm 0.5-6.Oppm 5.0-7.0ppm 7.0-8.Oppm 9.0-10.0ppm 10.0-12.0ppm Assign to the slots above where the following highlighted protons might be found. a) CH3-CH2- b) CH-CH2-CH2- c) HC-0 d) H-C(O)-R e) H-O-R ) H-O-C(O)-R g) H;C-Ar h ) H-C-C- j) CH3-CEC ...some groups appear in the same ppm range. [2pts each group correctly assigned) 2. Signal Splitting. Decide what splitting pattern (singlet, doublet,...
ORGANIC CHEMISTRY Can someone help me understand these questions? Please include an explanation with the answer....
ORGANIC CHEMISTRY
Can someone help me understand these questions? Please include
an explanation with the answer. Thank you!
0 1. Consider the structure of ethyl 3-methylbutanoate shown here: a. Predict 3 peaks you would expect to see in the mass spectrum of this compound. Draw the fragments which give rise to each of your peaks ㄇ b. Predict 3 peaks you would expect to see in the IR spectrum of this compound. Include information about what causes each of your...
I have most of the information, but I need help to organize it based on the...
I have most of the information, but I need help to organize it
based on the prompts below the pictures.
Mass Spec
Molecular Weight:
Important Fragments; what are they and what do they mean? (base
peak structure, is there a halogen, is there a benzene ring, is
there an odd number of nitrogens, other important fragments that
tell something about the structure)
IR
Is there an OH? Wavenumber?
Is there a carbonyl group? If so what type (acid. ester, amide,...
Help please No need for long explanation just the right option is fine, a or b...
Help please
No need for long explanation just the right option is
fine, a or b or c or d please. thank you!
Question 1 Rank these confirmations from east to most stable (loss stable < more stable) H H Н. BI Br HC HH₃C/ H CHE HC H HEC • Br UNI I I CHE H II - O<I<1 OIIIII IN1 Question 2 Which hydrogen atom is the most likely to be abstracted when this molecule is reacted with...
i need help with 16-18 : Short answers. Please answer the following questions in the space provided next to each q...
i need help with 16-18
: Short answers. Please answer the following questions in the space provided next to each question. Answer each question to the best of your ability, Be sure to show your thought process. 16. C. D. E and F. Consider the following energy diagram with energy maxima and minima marked as A, B. 45 kcalimol 19 kmol 45 kcalmol 19kmol 360 300 180 240 60 pihedral angle a) The conformations at a gap of 60° of...
need help figuring my unknown and answering these questions please number every question and explain...studying for...
need help figuring my unknown and answering these questions
please number every question and explain...studying for exam next
week.
Transmittance 4000 3500 3000 1500 1000 2500 2000 Wavenumbers (cm-1) 500 C:47.358 H:10.598 0:42.06% N:08 X:08 0 10 Solvent We were unable to transcribe this imageMS Analysis When labeling a signal, make sure you are clear which specific one you are labeling (there may be several that are dose! When drawing a structure for a signal, draw directly on the MS...
short answer help plz! check the ones i answered and help with the ones i didnt!!...
short answer help plz! check the ones i answered and help with the
ones i didnt!!
9. For the following reaction, what will be the effect on the rate if [NaCN) is halved? 11. Which of these Newman Projections shows the preferred conformation for an E2 reaction to occur? NaCN - Br DMSO product / V I (a) The rate doubles / CH3 (b) The rate triples The rate will be halved (d) The rate stays the same (e) There...
Hi i need to known unknown molecule, functional group, 1hnmr , 13cnmr information and please give...
Hi
i need to known unknown molecule, functional group, 1hnmr ,
13cnmr information and please give me information about ir spectra
using NMR data given.
Carhonyl carbons Aldehydes/Ketones Carboxylic acid derivatives (Acids, amides, esters) Pi-system carbons Aromatics Alkynes Alkenes Carbons with electronegative atoms or groups Ethers/Alcohols (X=0) lodides (X = 1) Other Groups (CI, Br, N. C=C, CHO) Alkyl carbons Methine Methylene Methyl 225 200 175 150 125 100 Chemical Shift (ppm) 75 25 Protons adjacent to electron withdrawing groups...
For NMR Structure of following compounds:
Why splitting is like this?Why chemical shifts are like this?So
i have the answer of this question here.But i need detailed
explanation.
(a) Sketch the 'H NMR spectrum you would expect for the following compounds, showing the splitting patterns, chemical shifts and integration of each signal. Explain in detail. (40P) OH CI CH(CH3)2 4-isopropylphenol H3C OH 3-chloro-2-buten-1-ol 9.06 ОН 6.68 6.68 7.22 27.22 12.87 120 120 10 PPM Two CH3 groups appear as doublet...
I need help with this one
For the protons labeled Ha and Hb in the structure below, predict the characteristics of their signals in the 1H NMR spectrum: the approximate chemical shift, the splitting pattern, and the integration value. Approximate chemical shift Splitting Integration value
1. Signal Assignment. Below are a set of ranges where a specific H' NMR signal might be found. 0.5-2.0ppm 2.0-3.0ppm 3.0-5.Oppm 0.5-6.Oppm 5.0-7.0ppm 7.0-8.Oppm 9.0-10.0ppm 10.0-12.0ppm Assign to the slots above where the following highlighted protons might be found. a) CH3-CH2- b) CH-CH2-CH2- c) HC-0 d) H-C(O)-R e) H-O-R ) H-O-C(O)-R g) H;C-Ar h ) H-C-C- j) CH3-CEC ...some groups appear in the same ppm range. [2pts each group correctly assigned) 2. Signal Splitting. Decide what splitting pattern (singlet, doublet,...
ORGANIC CHEMISTRY
Can someone help me understand these questions? Please include
an explanation with the answer. Thank you!
0 1. Consider the structure of ethyl 3-methylbutanoate shown here: a. Predict 3 peaks you would expect to see in the mass spectrum of this compound. Draw the fragments which give rise to each of your peaks ㄇ b. Predict 3 peaks you would expect to see in the IR spectrum of this compound. Include information about what causes each of your...
I have most of the information, but I need help to organize it
based on the prompts below the pictures.
Mass Spec
Molecular Weight:
Important Fragments; what are they and what do they mean? (base
peak structure, is there a halogen, is there a benzene ring, is
there an odd number of nitrogens, other important fragments that
tell something about the structure)
IR
Is there an OH? Wavenumber?
Is there a carbonyl group? If so what type (acid. ester, amide,...
Help please
No need for long explanation just the right option is
fine, a or b or c or d please. thank you!
Question 1 Rank these confirmations from east to most stable (loss stable < more stable) H H Н. BI Br HC HH₃C/ H CHE HC H HEC • Br UNI I I CHE H II - O<I<1 OIIIII IN1 Question 2 Which hydrogen atom is the most likely to be abstracted when this molecule is reacted with...
i need help with 16-18
: Short answers. Please answer the following questions in the space provided next to each question. Answer each question to the best of your ability, Be sure to show your thought process. 16. C. D. E and F. Consider the following energy diagram with energy maxima and minima marked as A, B. 45 kcalimol 19 kmol 45 kcalmol 19kmol 360 300 180 240 60 pihedral angle a) The conformations at a gap of 60° of...
need help figuring my unknown and answering these questions
please number every question and explain...studying for exam next
week.
Transmittance 4000 3500 3000 1500 1000 2500 2000 Wavenumbers (cm-1) 500 C:47.358 H:10.598 0:42.06% N:08 X:08 0 10 Solvent We were unable to transcribe this imageMS Analysis When labeling a signal, make sure you are clear which specific one you are labeling (there may be several that are dose! When drawing a structure for a signal, draw directly on the MS...
short answer help plz! check the ones i answered and help with the
ones i didnt!!
9. For the following reaction, what will be the effect on the rate if [NaCN) is halved? 11. Which of these Newman Projections shows the preferred conformation for an E2 reaction to occur? NaCN - Br DMSO product / V I (a) The rate doubles / CH3 (b) The rate triples The rate will be halved (d) The rate stays the same (e) There...
Hi
i need to known unknown molecule, functional group, 1hnmr ,
13cnmr information and please give me information about ir spectra
using NMR data given.
Carhonyl carbons Aldehydes/Ketones Carboxylic acid derivatives (Acids, amides, esters) Pi-system carbons Aromatics Alkynes Alkenes Carbons with electronegative atoms or groups Ethers/Alcohols (X=0) lodides (X = 1) Other Groups (CI, Br, N. C=C, CHO) Alkyl carbons Methine Methylene Methyl 225 200 175 150 125 100 Chemical Shift (ppm) 75 25 Protons adjacent to electron withdrawing groups...
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