Homework Answers
(a) protons with the different chemical environment will give different peaks
(b)
integration ration of a:b:c:d = 2:2:3:3
apart from ethyl acetoacetate peak no other peak is present in the NMR spectrum therefore compound is pure.
(c)
NMR, please help. 16) Chemical Formula: C,H,O, IR: strong peak 1720cm-1 PPM mple A4 thouis Yoo...
NMR, please help.
16) Chemical Formula: C,H,O, IR: strong peak 1720cm-1 PPM mple A4 thouis Yoo 05 quadret 1:2:2:1 Triplet 1:3:1 244 PPM USER: -- DATE: 04/12/10 08:27 PTS1d: 4096 Nuts - A4 OF1: 372.1 010 AlglobalVZGH.ppg SWI: 1000 PW: 19.6 us PD: 3.0 sec NA LB: 0.0 (ethylacetate) H3C CH₂ - CH3 C4H8O₂ 2. PROTON MAGNETIC RESONANCE SPECTRAL DATA Complete the table below by listing the chemical shiits of all of the signal patterns in the nmr spectrum of...
please provide detailed explanation of solution for thumbs up 6. Reaction Coordinate Diagrams (10 points) (a)...
please
provide detailed explanation of solution for thumbs up
6. Reaction Coordinate Diagrams (10 points) (a) Sketch an accurate energy diagram that meets the following criteria (4 points) SM - OM Int - P SM - Int is endergonic and the slowest step. overall SM + P is exergonic. al Free Energy (G) Reaction Coordinate (b) Label the transitions states in your diagram (2 points) (c) Indicate AG. for the overall transformation (2 points) (d) Indicate E. for each step...
Please help me fill out this page I'm so lost. Please explain too, thank you! рр...
Please help me fill out this page I'm so lost. Please explain
too, thank you!
рр 0,43 2.dl 3.01 Code Number . STRUCTURE OF UNKNOWN (Draw Below) -. PROTON MAGNETIC RESONANCE SPECTRAL DATA Complete the table below by listing the chemical shifts of all of the signal patterns in the nmr spectrum of your compound (chemical shifts of clear multiplets are single numbers at the midpoint of the pattern, chemical shifts of complex multiplets are given as ranges). Assign the...
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,...
5. Using the GC mentioned in question 4 and the values listed on the chromatogram for...
5. Using the GC mentioned in question 4 and the values listed on the chromatogram for the height and width (at half height) of each peak, calculate the percent composition for each product (A, B and C). Be sure to show your work. (8 points) 6. The products corresponding to each peak on the GC are the ortho, meta, and para isomers of the nitrated product shown in the scheme for reaction 1. These isomers were isolated, and a proton...
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...
Please help identify conpound Sample A8 PPM DATE: 04/12/10 (09:15) AB FIR 60.010 SWI: 1000 PW:...
Please help identify conpound
Sample A8 PPM DATE: 04/12/10 (09:15) AB FIR 60.010 SWI: 1000 PW: 19.6 OF 1: 368.7 USER: PTSid: 8192 EX: HIV.ppg PD: 3.0 sec INAS Nutstemp 1605 3064 486 %Transmittance 2874 556 2895 746 3028 2932 1453 1496 269 772 3500 3000 1500 1000 500 2500 2000 Wavenumbers (cm-1) Date: Fri Oct 29 11:30:24 2010 (GMT-07:00) AB KBr Scans: 16 Resolution: 2.000 Name Organic Chemistry 2242 Spectroscopy Unknown A (S-05) During this lab period, you are...
Given the NMR and IR graphs, which unknown compound fits your graph, and fill out the...
Given the NMR and IR graphs, which unknown compound fits your
graph, and fill out the tables about your unknown.
STANDARD 1N OBSERVE Archive directory! Sample directory: F1101 PROTON A 14 Pulse Sequence! s2pul Solvent: CDC13 Ambient temperature Mercury-300BB Hvarian300 Relax delay 1.000 sec Puis 45.0 degrees Acg. time 1.996 sec Width 4803.1 MZ & repetitions OBSERVE NL, 233.9587289 MHZ DATA PROCESSING FT size 32768 Total tine min. 25 sec 2.8 0 ppm 0.94 1604 1081 1364 3063 534 1384...
please dont miss the questions 11-4: Aldol - 1 For this assignment, the target compound that...
please dont miss the questions
11-4: Aldol - 1 For this assignment, the target compound that you should synthesize is 2-ethyl-3-hydroxy-hexanal. This is a symmetric aldol reaction. Examine the product and determine which bond may be formed to link the two aldehydes. Keep in mind the mechanism and identify the nucleophile and the electrophile. Synthesis Procedures 1. Start Virtual ChemLab and select Aldol – 1 from the list of assignments on the whiteboard. After entering the synthesis laboratory, use the...
I need help with questions 5, 6, & 7. The FTIR and NMR is provided. I...
I need help with questions 5,
6, & 7. The FTIR and NMR is provided. I also need help creating
a reaction mechanism using the following:
Starting material: methyl acetate.
Solvent: diethyl ether
Reagent: sodium methoxide
Product: methyl acetoacetate
THANK YOU!!!!!
11-8: Claisen Condensation - 1 For this assignment, the target compound that you should synthesize is methyl acetoacetate.This is another carbonyl addition variation. Examine the product and determine which ester is the nucleophile and which is the electrophile. Keep...
NMR, please help.
16) Chemical Formula: C,H,O, IR: strong peak 1720cm-1 PPM mple A4 thouis Yoo 05 quadret 1:2:2:1 Triplet 1:3:1 244 PPM USER: -- DATE: 04/12/10 08:27 PTS1d: 4096 Nuts - A4 OF1: 372.1 010 AlglobalVZGH.ppg SWI: 1000 PW: 19.6 us PD: 3.0 sec NA LB: 0.0 (ethylacetate) H3C CH₂ - CH3 C4H8O₂ 2. PROTON MAGNETIC RESONANCE SPECTRAL DATA Complete the table below by listing the chemical shiits of all of the signal patterns in the nmr spectrum of...
please
provide detailed explanation of solution for thumbs up
6. Reaction Coordinate Diagrams (10 points) (a) Sketch an accurate energy diagram that meets the following criteria (4 points) SM - OM Int - P SM - Int is endergonic and the slowest step. overall SM + P is exergonic. al Free Energy (G) Reaction Coordinate (b) Label the transitions states in your diagram (2 points) (c) Indicate AG. for the overall transformation (2 points) (d) Indicate E. for each step...
Please help me fill out this page I'm so lost. Please explain
too, thank you!
рр 0,43 2.dl 3.01 Code Number . STRUCTURE OF UNKNOWN (Draw Below) -. PROTON MAGNETIC RESONANCE SPECTRAL DATA Complete the table below by listing the chemical shifts of all of the signal patterns in the nmr spectrum of your compound (chemical shifts of clear multiplets are single numbers at the midpoint of the pattern, chemical shifts of complex multiplets are given as ranges). Assign the...
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,...
5. Using the GC mentioned in question 4 and the values listed on the chromatogram for the height and width (at half height) of each peak, calculate the percent composition for each product (A, B and C). Be sure to show your work. (8 points) 6. The products corresponding to each peak on the GC are the ortho, meta, and para isomers of the nitrated product shown in the scheme for reaction 1. These isomers were isolated, and a proton...
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...
Please help identify conpound
Sample A8 PPM DATE: 04/12/10 (09:15) AB FIR 60.010 SWI: 1000 PW: 19.6 OF 1: 368.7 USER: PTSid: 8192 EX: HIV.ppg PD: 3.0 sec INAS Nutstemp 1605 3064 486 %Transmittance 2874 556 2895 746 3028 2932 1453 1496 269 772 3500 3000 1500 1000 500 2500 2000 Wavenumbers (cm-1) Date: Fri Oct 29 11:30:24 2010 (GMT-07:00) AB KBr Scans: 16 Resolution: 2.000 Name Organic Chemistry 2242 Spectroscopy Unknown A (S-05) During this lab period, you are...
Given the NMR and IR graphs, which unknown compound fits your
graph, and fill out the tables about your unknown.
STANDARD 1N OBSERVE Archive directory! Sample directory: F1101 PROTON A 14 Pulse Sequence! s2pul Solvent: CDC13 Ambient temperature Mercury-300BB Hvarian300 Relax delay 1.000 sec Puis 45.0 degrees Acg. time 1.996 sec Width 4803.1 MZ & repetitions OBSERVE NL, 233.9587289 MHZ DATA PROCESSING FT size 32768 Total tine min. 25 sec 2.8 0 ppm 0.94 1604 1081 1364 3063 534 1384...
please dont miss the questions
11-4: Aldol - 1 For this assignment, the target compound that you should synthesize is 2-ethyl-3-hydroxy-hexanal. This is a symmetric aldol reaction. Examine the product and determine which bond may be formed to link the two aldehydes. Keep in mind the mechanism and identify the nucleophile and the electrophile. Synthesis Procedures 1. Start Virtual ChemLab and select Aldol – 1 from the list of assignments on the whiteboard. After entering the synthesis laboratory, use the...
I need help with questions 5,
6, & 7. The FTIR and NMR is provided. I also need help creating
a reaction mechanism using the following:
Starting material: methyl acetate.
Solvent: diethyl ether
Reagent: sodium methoxide
Product: methyl acetoacetate
THANK YOU!!!!!
11-8: Claisen Condensation - 1 For this assignment, the target compound that you should synthesize is methyl acetoacetate.This is another carbonyl addition variation. Examine the product and determine which ester is the nucleophile and which is the electrophile. Keep...
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