1. Three of the following five molecules gave rise to the three IR spectra shown below and on the next page. a. Next to the structures, indicate the expected IR peaks for the FGs. b. Match each spectrum to the molecule that produced it. Briefly justify each answer. но 22 23 24 25 26 27 28 29 3 NEAT 22 23 24 25 26 27 28 29 3 NEAT 22 23 24 25 26 27 28 29 3 NUJOL :0: HO MICRONS Jurining 3.5 M 1800 WAVENUMBERS MICRONS (continued on the back) 1600 WAVENUMBERS HO MICRONS :0: WAVENUMBERS H N H3CO 11 :0: :Ö: 12 13 14 15 16 17 18 19 21 23 25 12 -0.4 -2.0 400 NICOLET 205X FT-IR 14 15 16 17 18 19 21 23 25 www. 12 13 14 15 16 17 18 19 04 -88 NICOLET 20SX FT-IR -2.0 HOI 21 23 25 M-04 NICOLET 20SX FT-IR

Q: Based on the given spectral information, draw the structure of the molecule

A:

Q: Which of the following compounds would produce the set of mass spectra peaks shown below? All 3…

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Q: 1. What do you suppose is the molecular weight of the molecule that gives the mass spectrum below?…

A: Note:-  According to our guidelines we are supposed to answer only one question. Kindly repost other…

Q: b. The coupling constant J3 in 1-bromo-2-chloroethane which is 6.0 Hz in a 200 MHz NMR is 12.0 Hz in…

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Q: Mass Spectrometry (not shown): [M] = 158 m/z -1 Infrared Spectroscopy (not shown): 2970, 2940, 2880,…

A: Spectroscopy methods are used to determine the structure of chemical compound

Q: b. The coupling constant J,a in 1-bromo-2-chloroethane which is 6.0 Hz in a 200 MHz NMR is 12.0 Hz…

A: True or False

Q: Here's an IR spectrum. Which of the suggested chemical structures is it consistent with? LOD TUNT O…

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Q: Which of the following band(s) would be found in the spectra for one of these compounds, but not the…

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Q: Relative Intensity 100 80 60 40 20 0 MS-NW-1546 25 A 50 O B 75 CI C m/z 100 HN. D 125 Hmmm 150

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Q: 7. MATCH a structure from the list below to the following IR spectra. Place the structure in the…

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Q: 5. Mass spectra are provided for two constitutional isomers with the formula C₁0H₁4O. Predict the…

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Q: 2. Consider the following mass spectrum. Intensity 100- 80 20- 0. 10 20 30 40 m/z 50

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Q: a. % Transmittance 100 80 60 40 20 0 For the IR spectrum shown below, identify the structural…

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Q: 4 Br. Br

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Q: QUESTION 35 Which structure would show major fragment ions at 59 and 73 m/z in its mass spectrum? ОН…

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Q: 4. Identify ketone for this spectrum.

A: given identify ketone

Q: 200 180 160 140 120 100 80 60 40 20 CDS-00-344 ppm nd the Structural Formula in 13C-NMR Spectra of…

A:

Q: Choose the compound with the most intense IR signal at -1700 cm1. CI .CI .CI CI A B D

A:

Q: Wavelengh m) 10 12 13 14 15 16 26 27 28 29 ! 300 3600 3400 3200 3000 2800 2600 2400 23200 2000 1S00…

A: Spectra 1 : 2800 cm-1 and 2700 cm-1 aldehyde C-H stretch. 1730 cm-1 carbonyl stretch. Therefore the…

Q: 4. Provide the structure of the fragments that are form in the mass spectrum shoWn below for the…

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Q: Tell how IR spectroscopy could be used to determine when each reaction is complete.

A: a.

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Q: An undergraduate student was identifying compounds in a bottle. She takes a mass spectrum of the…

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Q: For each of the following molecules, draw the most likely molecular ions (always a radical cation)…

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Q: 4. For the following reaction, which of the following is consistent with the IR spectrum of the…

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Q: 3. Determine the compound with formula C6H₁2O2 that gives rise to the following spectra. IR 25 26 27…

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Q: Please analyze this spectra

A: The given spectrum is the 13C NMR of camphor, which has a molecular formula of C10H16O.

Q: 100 H3C 80 60 40 CH3 H3C 20 H3C H;c+ 0.0- 0.0 15 30 45 60 75 90 m/z Figure 3. Positive ion mass…

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Q: D A OH G B NH₂ O E H "I OH C F

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Q: Mass Spectrum of Unknown A Intensity relative to base peak (%) m/z 116 0.5 101 12 75 26 57 100 43 66…

A:

Q: ompare the two observed spectra above. How are they similar? WHY are they different?

A: Spectroscopy is the technique of splitting light (or more precisely electromagnetic radiation) into…

Q: 100 a. 43 80 60 40 20 86 58 71 20 40 60 80 100 120 100 b. 57 80 60 29 40 86 20 20 40 60 80 100 120…

A: Mass spectra is used to measure the mass to charge ratio of molecules in a sample.

Q: 1. Use the data below from an electron impact mass spectrum of a pure compound to deduce its…

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Q: Rel. Intensity D 100 80 60 40 201 0.0t 60 Explain each Mass Spectrum peak for Br₂ 80 100 Bromine…

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Q: Determine the molecular ion peak in the mass spectra below.

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Q: The rule you generated in Question 14b for finding the [M]* peak on the mass spectrum of an unknown…

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Q: How can IR spectroscopy be used to determine when the attached reaction is complete?

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.