Fashion blogs are bad Did you know that a fashion blog is actually a drug‚ well it’s not classified as a drug but you get addicted to them. You stop seeing the importance in life such as news‚ disasters and so on. All that’s on your mind is fashion‚ shoes and makeup. Fashion blogs also makes you spend money. I think fashion blogs are bad and here comes some reasons. First of all fashion blogs are only nonsense. All there is to read are clothes‚ makeup‚ bags and shoes. All their readers
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oxidation of cyclohexanol to cyclohexanone involves the removal of hydrogen from the OH group. After separation and purification‚ an Infrared Spectrum will be run to determine the composition of the recovered material. Infrared Spectroscopy is a very powerful technique used in the determination of molecular structure and the identification of unknown organic materials. The infrared spectrum yields direct information about the presence or absence of key functional
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Application of Fluorescence Spectroscopy in Chemical Oceanography: Tracing Colored Dissolved Organic Matter (CDOM) Erika Mae A. Espejo 3rd year‚ BS Chemistry‚ University of the Philippines‚ Diliman Abstract Dissolved organic matter (DOM)‚ the fraction passing through a 0.45 µm membrane filter‚ is considered poorly understood mixture of organic polymers because of its complexity. Although it largely influences a lot of biogeochemical processes in aquatic environments‚ its characterization is not
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Title: Introduction to Spectrophotometric Analysis Introduction: Spectrophotometric Analysis which is one of the most common and valuable analysis techniques used to study the interaction of electromagnetic radiation with chemical compounds (Stewart & Ebel‚ 2000). By using spectrophotometric analysis or spectrophotometry‚ one can determine the identity in terms of structure and species of a biomolecule as well as establish the concentration of a certain biomolecule (Stewart & Ebel‚ 2000).
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Experiment 2 Title: Determination of Quinine in Tonic Water Objective: To Determine the Concentration of Quinine Hydrochloride in Sample (Schweppers) given‚ by plotting a Calibration Curve of Fluorescent Intensity against Concentration of Quinine Hydrochloride in ppm‚ after Fluorescence Intensity of a series of Standard Solution prepared and the Sample solution by Fluorescence Spectrometer. Data: Brand name of tonic water sample: Schweppes Dilution factor = 1000 Concentration of
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the percent composition of each product for both of the NMR spectra shown in this content area. Provide the average percent composition. Discussion: Discuss what the major product was in each case‚ and why‚ (thermo vs kinetic) Describe how NMR spectroscopy worked to determine the product concentration. Speculate how the opposite product composition might be obtained. Describe the reaction mechanism for the the two condensation reactions that were done. Predict the product that you would expect
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Experiment 1: Preparation of 1-Bromobutane and Reactivity of Alkyl Halides Objective: The purpose of this lab is to prepare 1-bromobutane from 1-butanol in an acid-catalyzed substitution reaction. While the reaction would be expected to occur as SN2 due to the primary nature of the substrate‚ because H2SO4 is used as a solvent‚ the conditions are very polar and the reaction can proceed via an SN1 reaction. The main objective is to obtain test results to determine the mechanism of the reaction
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The technique by the name of Raman Spectroscopy was used (2013). This method detects laser light allowing for investigators to analyze lipstick marks left at the crime scene (2013). “Analyzing lipstick traces can be used to establish physical contact between two individuals‚ such as a victim and a suspect” (2013). This advancement is significant because current lipstick tracing relies on destructive forensic techniques or human opinion (2013). “Raman spectroscopy is ideal as it can be performed through
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of the alkene formed in a Wittig Reaction. The nitro group is substituted in the ortho‚ meta‚ and para positions‚ and benzaldehyde serves as a control. The ylide used is (carbethoxymethylene) triphenylphosphorane. Through the utilization of NMR spectroscopy‚ the products of the reactions will be analyzed to gain a ratio of E /Z isomers. Reaction Equations:Ethyl cinnamate from BenzaldehydeEthyl-3-(2-nirophenyl)acrylate from O-nitrobenzaldehydeEthyl-3-(3-nitrophenyl)acrylate from M-nitrobenzaldehydeEthyl-3-(4-nitrophenyl)acrylate
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hydride addition is that product is entirely a racemic mixture (McMurry 696). After the initial reaction the product was isolated using a series of vacuum filtrations‚ ether extractions‚ and rotorary evaporations‚ before being analyzed via proton NMR spectroscopy. Results and Discussion: The table listed below as Table 1 lists the starting amounts of each of the chemicals present in the reaction flask‚ along with their formula mass. Compound: Moleculear Mass (g/ mol) Mass
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