This is all i was given. No mass just the percentages of the atoms
The mass percentage of the atoms present in the compound are given, which doesn't make upto 100%. Thus the missing atom there with unique atomic mass was first to be discovered as can be seen in the answering images. MS and IR spectra leads us to the chemical formula and NMR data provides the data to construct the exact molecule.
Given C = 56.25% NMR shows 5-H = 3.91 % . O = 12.5% .
Mass spectra shows base peak at m/z=128 =>Molecular ion peak.
IR data: broad peak at 3300-3400 cm → H-bonded O-H.
NMR: Peaks around delta-(6.5-7.0) ppm. → Aromatic protons.
Mass of oxygen in the compound = 128 x 0.125 = 16 => number of O-atoms = 1.
Mass of carbon = 128 x 56.25/100 = 72 160 => number of C-atoms = 6.
Mass of Hydrogen = 128* 3.91/100 = 5 => number of H- atoms = 5.
There should be a Cl-atom present in the molecule to fulfil the molecular mass of 128.
Hence Chemical formula = C6H5OCl. Degree of unsaturation = (14-6)/2 = 4
So with one exchangeable O-H proton and rest aromatic protons, the compound is a mono-chlorophenol. Now, the NMR shifts are -> delta~6.1ppm = Hydroxyl group proton. delta~(6.5-7.2) ppm = 4 - different aromatic protons -- can only be when, Cl is at meta position with respect to –OH group. Hence the compound is --> meta-chlorophenol.
This is all i was given. No mass just the percentages of the atoms 3) Unknown 311 (56.25% C, 3.91% H, 12.5% 0) 4000 360...
4) Unknown 428 (29.30% C,5.74% H) 4000 3600 3200 2800 2400 2000 1800 1800 1400 1200 1000 300 600 100- Relative Intensity 10 20 30 40 50 60 80 90 100 110 120 70 m/z peo ppm 10 ppm Chemical Formula: Degrees of Unsaturation: Label Absorbance Max Relative Intensity Shape Functional group/hybridization Considerations, Comments Signal Label Shift Integration Multiplicity Adjacent protons Hydrogen type Considerations, Comments Molecular Ion mass Special Considerations, Comments (e.g. nitrogen, bromine, or chlorine present?) #4 Final Answer:
could anyone help asap please Unknown 295 (30.29C, 254% H) 400 3200 2300 2400 200 1800 1600 1400 1400 1200 100 800 F 100- 80 50 Relative Intensity 40 201 0-1rtrirritoryาก 25 50 Trim 75 125 150 100 m/z 2 2 8 6 12 10 Chemical Formula: Degrees of Unsaturation: Label Considerations, Comments Shape Absorbance Max Relative Intensity Functional group/ hybridization Shift Integration Multiplicity Considerations, Comments Signal Label Adjacent protons Hydrogen type
could someone help asap please Degrees of Unsaturation: S Label Considerations, Comments Absorbance Max Relative Intensity Shape Functional group by bridization Considerations, Comments Shin Signal Label Integration Multiplicity Adjacent protons Hydrogen type mass 1 #1 Final Answer: Unknown 295 (30.29% C,254% H) 4000 3200 2300 2400 2000 180 1600 1400 1400 1200 10) 800 Fi 100- 80 Relative Intensity 40 201 0-trirnitrpm 25 Tim SO 75 125 150 100 m/z
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