Our Infrared Spectroscopy (IR) spectrum for our Acetaminophen KBr pellet provided a handful of strong peaks and hints that helped us to hypothesize what functional groups might be in Acetaminophen. The peaks that were at the highest wavenumbers were analyzed first. The strong peak at 3325.82 cm-1 was an indicator that there was stretching occurring between a Hydrogen and Nitrogen atom. This signified that Acetaminophen could contain an amide group. The next defined peak is located at 3162.26 cm-1
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DATE PERFORMED: JULY 20‚ 2007 SPECTROPHOTOMETRIC DETERMINATION OF EQUILIBRIUM CONSTANT FOR A REACTION ABSTRACT UV-VIS spectrophotometry is one of the most widely-used methods for determining and identifying many inorganic species. During this experiment‚ this spectrophotometry was used to determine the equilibrium constant‚ Keq‚ of the Fe3+(aq)+SCN-(aq)↔ FeSCN2+(aq) reaction. By determining the amount of light absorbed‚ the concentration of the colored FeSCN2+ solution was also quantitatively
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Abstract Density functional theory (DFT) calculations have been used to investigate the structural properties‚ dipole moments‚ polarizabilities‚ Gibbs energies‚ hardness‚ electronegativity‚ HOMO/LUMO energies‚ chemical potentials‚ density of states and detonation properties of trans and cis configurations of azocubane. All properties have been obtained using the B3LYP functional and 6-31G(d‚p) basis set. Also‚ IR‚ UV-Vis‚ CD and NMR spectra of the structures were simulated. The volumes of the structures
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Shapter ‚J. 2014 Experiment 1: Rate of Isomerism cis[Co(en)2Cl2]Cl‚ Flinders University‚ Australia The Cis- isomer form of the complex which is purple in solution reacts to form the Trans- isomer which is green in solution. This experiment uses spectroscopy to quantify the conversion of the Cis into the Trans isomer due to the fact that the concentration of the Cis isomer is proportional to the difference in absorbance of the two complexes in solution. This isomerism of the Cis-form is a first order
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plenty of other nourishable foods which indicate to the archaeologists and scientists that Lindow Man was not poor and was possibly from the middle to upper class. Another scientific technique that was used was the use of electron spin resonance spectroscopy which revealed Lindow Man had eaten burnt griddle cake as his last meal. Also through using Atomic Absorption Spectrometry‚ scientists concluded that Lindow Man must have been wearing body paint when he died as he had a high concentration of copper
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Nahom Assefa CHM-201 General Chemistry and Laboratory I Laboratory 8. Spectroscopy Purpose: Spectroscopy is the study of matter interacting with electro-magnetic radiation (e.g. Light). In this lab‚ we will separate some light sources in to constituent colors and find out the wavelength of some atomic emissions. We will also try to compare the line spectra found from gas discharge tubes and flame emissions. Finally‚ we will measure
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utilized to compare its absorbance to the unknown sample of limestone # 8066 on the standard curve. Moreover‚ magnesium sulfate heptahydrate (MgSO4*7H2O‚ CAS: 10034-99-8‚ 40.8ppm) was also utilized to compare its absorbance against that of the unknown. Lab personnel from the CSU Eastbay department of chemistry stockroom performed all calibrations on the Perkin Elmer AAnalyst 300 atomic absorption spectrometer. All chemicals used in this experiment were obtained from the CSU Eastbay department of
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ARTICLE Mass Spectrometry to Classify Non–Small-Cell Lung Cancer Patients for Clinical Outcome After Treatment With Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors: A Multicohort Cross-Institutional Study Fumiko Taguchi‚ Benjamin Solomon‚ Vanesa Gregorc‚ Heinrich Roder‚ Robert Gray‚ Kazuo Kasahara‚ Makoto Nishio‚ Julie Brahmer‚ Anna Spreafico‚ Vienna Ludovini‚ Pierre P. Massion‚ Rafal Dziadziuszko‚ Joan Schiller‚ Julia Grigorieva‚ Maxim Tsypin‚ Stephen W. Hunsucker‚ Richard Caprioli
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Chemistry 12 Formal Report Measuring Reaction Rate using Volume of Gas Produced By John Doe 23th October 2012 Introduction An essential element of chemistry is finding reaction rates. This is because chemists need to know how long a reaction should take. In addition to needing to know the rate of a reaction at any point in time to monitor how the reaction is proceeding. Many factors effect reaction rates‚ two shown above include temperature and concentration. Concentration affects the
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Background Information: Spectrophotometry is a method that measures how much light is absorbed by using the electromagnetic spectrum. By seeing which colors are absorbed and which are reflected scientists can determine what a substance is without having to touch them. This is possible because each substance has a specific absorbance spectrum‚ meaning that the absorption spectrum of two different substances cannot be the same. Purpose/Hypothesis: 1. The purpose of the experiment was to determine
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