WAutoSaveOff 周りFileHome Insert DrawAssignment 3-1 Saved to this PC ✓Design Layout References Mailings ReviewA A AaTimes New Roman✓ 12✓PasteBIUabx² A✓くClipboardГуPage 5 of 101 76°FClear254 wordsㄈㄨˋFontSearchChristiana Taylor CTCommentsEditing ✓ ShareView HelpFindP✓✓= = ↓¶NormalNo Spacing Heading Heading 2ГУParagraph☑Styles3. Determine and draw the structure corresponding to the spectral information providedbelow. As you make this determination, complete the table below. Explain what clues youused to determine the structure.SC5H1002SignalбABC-4.3-2.0с-1.3PPMIntegrationMultiplicitym (multiplet/septet)Sd叹Text Predictions: OnAccessibility: Investigate219Q SearchW✓ReplaceSelect ▾Dictate Editor Add-insEditingVoiceEditorAdd-ins>|+88%Focus8:01 PM4/2/2024

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Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter9: Atomic Absorption And Atomic Fluorescence Spectrometry

Section: Chapter Questions

Problem 9.16QAP

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A PLQ-PHY2054L.d 138 lbs to kg - G C Draw The Structu 4 Properties of Wa E Properties of Wa ngagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take ranslate Open Vellum Course Home [Review Topics] [References) The chemical environment of carbons can be deduced form their chemical shifts. Deduce the relative chemical shifts of the carbons at the labeled positions. (Carbons that are highly shielded have low delta, chemical shift, values.) 1) b. a The carbon with the smallest delta value (the most shielded) is c The carbon with the largest delta value (the most deshielded) is a 2) a C The carbon with the smallest delta value (the most shielded) is The carbon with the largest delta value (the most deshielded) is
Which atom do you expect is present in this spectrum? 100 Rel. Intensity 80 60 60 40 40 20 20 0.0 0.0 15 30 45 60 75 90 m/z NIST Chemistry WebBook (https://webbook.nist.gov/chemistry) Only hydrocarbons Bromine Chlorine O Nitrogen
Q4 Species Added to Fe(SCN) (H₂O)5²+ FeCl3 KSCN KCI CuSO4 RCS1602 Chemistry 1B - Experiment 2, cont'd. Resulting Colour Change Table 2 Equilib. Shift Equation Table complete and all observations and 2
A researcher is studying cytochrome oxidase, a protein that uses iron to bind diatomic oxygen. She collects two IR spectra, shown below. In the first spectrum, no isotopic labeling is used (top). In the second, 160 has been replaced with 180 (bottom). 820 655 790 0.5- 714 695 733 820 655 755 0.5- 714 695 733 600 650 700 750 800 850 V, (cm") Calculate the change in the ratio of reduced masses for this isotope shift. % Transmission
A researcher is studying cytochrome oxidase, a protein that uses iron to bind diatomic oxygen. She collects two IR spectra, shown below. In the first spectrum, no isotopic labeling is used (top). In the second, 160 has been replaced with 180 (bottom). 820 655 790 0.5- 714 695 733 820 655 755 0.5- 714 695 733 0- 600 650 700 750 800 850 Vo (cm") Based on the above ratio, which is the most likely source of this vibration, (a) the Fe-O stretch in Fell-O=0, or (b) the O-O stretch in Fell-O=O? You can assume that the atomic weight of Fe is 56. % Transmission
A researcher is studying cytochrome oxidase, a protein that uses iron to bind diatomic oxygen. She collects two IR spectra, shown below. In the first spectrum, no isotopic labeling is used (top). In the second, 160 has been replaced with 180 (bottom). 820 655 790 0.5- 714 695 733 820 655 755 0.5- 714 695 733 0- 600 650 700 750 800 850 o (cm') Give the frequency shift (in Hz) that occurred when 180 was substituted for 1°0. а. % Transmission
A researcher is studying cytochrome oxidase, a protein that uses iron to bind diatomic oxygen. She collects two IR spectra, shown below. In the first spectrum, no isotopic labeling is used (top). In the second, 10 has been replaced with 180 (bottom). 820 655 790 0.5- 714 695 733 820 655 755 0.5- 714 695 733 0+ 600 650 700 750 800 850 Vo (cm") Based on the above ratio, which is the most likely source of this vibration, (a) the Fe-O stretch in Fel-O=0, or (b) the O-O stretch in Fel"-O=O? You can assume that the atomic weight of Fe is 56. ww n wwm % Transmission
Unrounded Rounded ε∗,L/μmolε∗,L/μmol 0.0259825 0.0260 heres data: TZ # Concentration Absorbance at 430 nmnm 1 33.6480 0.931 2 25.2360 0.757 3 16.8420 0.210 4 8.41200 0.137 5 4.20600 0.122
Unrounded Rounded ε∗,L/μmol 0.0259825 0.0260 Heres the data if needed: TZ # Concentration Absorbance at 430 nmnm 1 33.6480 0.931 2 25.2360 0.757 3 16.8420 0.210 4 8.41200 0.137 5 4.20600 0.122
15) Chemical Formula: CsH8O₂ 5x2=10+2=12-8=4/2=2. IR: strong peak 1720cm-¹, 1650cm-1( hard to see but, all peaks that integrate to 1H are doublet of doublets) 5 1H 1H 1 3 3H PPM 3H −2 0
Assignment 2 1-While cleaning out a laboratory shelf, you have made a mistake in labeling two bottles of phenol and benzene. To identify the molecular structure of the contents of the bottle, samples were submitted for analysis using infrared spectroscopy, based on the IR results, draw the molecular structure of the molecule that would corespond to the spectrum for that compound. Justify vour answer Spectrum A Spectrum B 04 02 3000 2000 Wevenuter kni 1000 2000 Wavene m-1) 3000
3. Find the position of the absorption peak of a low-resolution spectrum of 12C180

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