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login on time Question 8 4 pts In 4,4-dimethyl-2.pentanone, give the number of sets of equivalent...
Organic Lab Technique Problem Set 1) How many different sets of equivalent protons are there in...
Organic Lab Technique Problem Set 1) How many different sets of equivalent protons are there in the following compound? CI CH3CCH2C(CH3)3 CH3 5. Which or the spect A. three B. four C. five D. six 2) Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? A. CC14 B. CHCl3 C. CH2C12 D. CH3CI 3) Which of the following has only a single peak in its proton NMR spectrum? I. (CH3)3CCI II. (CH3)2C=C(CH3)2 H,C...
1. How many different sets of "chemically equivalent protons" are on each of these different compounds?...
1. How many different sets of "chemically equivalent
protons" are on each of these different compounds?
2. Give the splitting pattern for the designated
protons on the following molecules.
3 Which type of spectroscopy can most easily be used
to tell these two compounds apart? (Note superscripted number
denotes mass number of isotope of oxygen)
10. Identify which compound best matches the following
spectral data.
1. How many different sets of "chemically equivalent protons" are on each of these different...
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...
The IR/spectrum shows the value, 1st photo shows the instructions. Attached are 2 sets of spectra....
The IR/spectrum shows the value, 1st photo shows the
instructions.
Attached are 2 sets of spectra. Each set is worth 25 points. Not all sets have a Mass Spectrum, but do have information that was obtained from MS and some sets do not have a "C-NMR and don't really need one. Look at each spectrum individually and clearly list and comment on the structural Characteristics you can determine from that spectrum. (Chemical shifts, splitting patterns, coupling constants, fragmentation patterns, absorption...
pls help ORGO lab question 11 - 10 9 8 7 6 - 5 4 3...
pls
help ORGO lab question
11 - 10 9 8 7 6 - 5 4 3 - 2 1 HSP-00-654 ppm Showth 5. Paste the 'H-NMR spectrum you recorded for Ethylacetoacetate below and answer the questions below: Louie ame from previouS CARS 0 0 H3C-C-CH2-C-O-CH2-CH3 Ethylacetoacetate (a) Identify number of different protons (mark them as a, b, c, ....) and label the peaks with a, b, c, ....on both the structure and spectrum. (b) Measure the height (in cm) of...
please answer every part of number 8, i will thumbs up answer! 8) a) How many aromatic 'H NMR signals would be expec...
please answer every part of number 8, i will thumbs up
answer!
8) a) How many aromatic 'H NMR signals would be expected for 2-bromo-5-methylanisole? (0.5 pts.) b) Proceeding in a clockwise direction, label each unique hydrogen atom on the aromatic ring using the labels H, through H , if needed. If the hydrogens are chemically shift equivalent, use the same label for each member of the set of equivalent hydrogens. ΥΗ c) Calculate the chemical shifts for the aromatic...
Molecular Formula: C H I le (1 pt) 1. Unknown# A-pt) 2. DU (IHD): Show calculation(2 pts) 을 Comm...
Molecular Formula: C H I le (1 pt) 1. Unknown# A-pt) 2. DU (IHD): Show calculation(2 pts) 을 Comments on IHD: (Ipt) One Picor ơne ring 3. Report IR analysis here. Tabulate (5 pts) Region Absorption, cm -1 Functional group Base Value Give as a range. Read from correlation chart. (Exact number read from IR 4000-3000 cm 3000-2500 2500-1700 cm 1700-1500 cm 1500-400 cm 1 4 Explain any IR special features in this box (2 pts) (Symmetry, conjugation, resonance, H-bonding,...
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...
Problem 1 (Short Answer) Answer the following questions in 2-4 sentences: a) Describe how uncertainty plays...
Problem 1 (Short Answer) Answer the following questions in 2-4 sentences: a) Describe how uncertainty plays a role in engineering measurements and experiments b) Explain what the variance of a dataset or random variable represents. c) Explain why normal distributions and normal random variables are used very commonly in engineering practice Describe what is meant by the rejection region of an alternative hypothesis, and sketch the rejection regions for the right-sided, left-sided, and two-sided alternatives d) Problem 2 (Health Data...
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2....
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCl stock solution. In your response to this question, be very specific about the quantities of stock solution and deionized water to be used in the dilution and the...
Organic Lab Technique Problem Set 1) How many different sets of equivalent protons are there in the following compound? CI CH3CCH2C(CH3)3 CH3 5. Which or the spect A. three B. four C. five D. six 2) Which of the following gives the furthest downfield shift from TMS in its proton NMR spectrum? A. CC14 B. CHCl3 C. CH2C12 D. CH3CI 3) Which of the following has only a single peak in its proton NMR spectrum? I. (CH3)3CCI II. (CH3)2C=C(CH3)2 H,C...
1. How many different sets of "chemically equivalent
protons" are on each of these different compounds?
2. Give the splitting pattern for the designated
protons on the following molecules.
3 Which type of spectroscopy can most easily be used
to tell these two compounds apart? (Note superscripted number
denotes mass number of isotope of oxygen)
10. Identify which compound best matches the following
spectral data.
1. How many different sets of "chemically equivalent protons" are on each of these different...
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...
The IR/spectrum shows the value, 1st photo shows the
instructions.
Attached are 2 sets of spectra. Each set is worth 25 points. Not all sets have a Mass Spectrum, but do have information that was obtained from MS and some sets do not have a "C-NMR and don't really need one. Look at each spectrum individually and clearly list and comment on the structural Characteristics you can determine from that spectrum. (Chemical shifts, splitting patterns, coupling constants, fragmentation patterns, absorption...
pls
help ORGO lab question
11 - 10 9 8 7 6 - 5 4 3 - 2 1 HSP-00-654 ppm Showth 5. Paste the 'H-NMR spectrum you recorded for Ethylacetoacetate below and answer the questions below: Louie ame from previouS CARS 0 0 H3C-C-CH2-C-O-CH2-CH3 Ethylacetoacetate (a) Identify number of different protons (mark them as a, b, c, ....) and label the peaks with a, b, c, ....on both the structure and spectrum. (b) Measure the height (in cm) of...
please answer every part of number 8, i will thumbs up
answer!
8) a) How many aromatic 'H NMR signals would be expected for 2-bromo-5-methylanisole? (0.5 pts.) b) Proceeding in a clockwise direction, label each unique hydrogen atom on the aromatic ring using the labels H, through H , if needed. If the hydrogens are chemically shift equivalent, use the same label for each member of the set of equivalent hydrogens. ΥΗ c) Calculate the chemical shifts for the aromatic...
Molecular Formula: C H I le (1 pt) 1. Unknown# A-pt) 2. DU (IHD): Show calculation(2 pts) 을 Comments on IHD: (Ipt) One Picor ơne ring 3. Report IR analysis here. Tabulate (5 pts) Region Absorption, cm -1 Functional group Base Value Give as a range. Read from correlation chart. (Exact number read from IR 4000-3000 cm 3000-2500 2500-1700 cm 1700-1500 cm 1500-400 cm 1 4 Explain any IR special features in this box (2 pts) (Symmetry, conjugation, resonance, H-bonding,...
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...
Problem 1 (Short Answer) Answer the following questions in 2-4 sentences: a) Describe how uncertainty plays a role in engineering measurements and experiments b) Explain what the variance of a dataset or random variable represents. c) Explain why normal distributions and normal random variables are used very commonly in engineering practice Describe what is meant by the rejection region of an alternative hypothesis, and sketch the rejection regions for the right-sided, left-sided, and two-sided alternatives d) Problem 2 (Health Data...
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCl stock solution. In your response to this question, be very specific about the quantities of stock solution and deionized water to be used in the dilution and the...
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