Particle in a Box Lab March 25‚ 2014 Kassandra Brady‚ Samantha Imler‚ & Michael Montone CHEM 353 Abstract: Introduction: Method I: Absorption Spectra of Conjugated Dyes This method analyzes a series of dyes with alternating double bonds. It is assumed that the π electrons are free to move and ignoring the electro static repulsion among the π electrons themselves. The theoretical model applied in this experiment is the particle in the box. The model states that a single particle moves free
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CH 202 Breakdown UV/Vis: Molecules containing π-electrons or non-bonding electrons (n-electrons) can absorb the energy in the form of ultraviolet or visible light to excite these electrons to higher anti-bonding molecular orbitals. The more easily excited the electrons (i.e. lower energy gap between the HOMO and the LUMO)‚ the longer the wavelength of light it can absorb. Conjugation raises the energy of the bonding orbitals and lowers the energy of the antibonding molecular orbital. This
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ACKNOWLEDGEMENTS It is usually said that no man is an island unto himself‚ and any man who so lives all by himself‚ without interacting with his fellow men is in the words of Aristotle‚ “either a beast or a god”. Mutual co-operation and interaction form the cardinal feature of human life. The task of writing this report has not‚ in the least‚ been an easy one‚ and it would be axiomatic to add that all the numerous tasks involved could not be have been accomplished successfully singly
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environment plays a very important and critical role in the early brain development. During this period the brain receives‚ processes and stores everything from the environment without any effort and discrimination and this form of absorption is called the unconscious absorption. The intense mental activity is always going on even in the prenatal stage and it characterizes the absorbent mind. There are various way though which the adults can take care of the child in their life. The adult must provide
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CHEM 2303: ANALYTICAL CHEMISTRY II LECTURE 1 – INTRODUCTION‚ SAMPLE PREPARATION AND SPECTROPHOTOMETRY WHY STUDY ANALYTICAL CHEMISTRY? To gain a knowledge of the methods and strategies that have been developed to investigate the nature of the chemistry around and within us. To answer the age old questions: What is it? What is it made of? How does it work? We must learn the principles of chemical analysis and the array of strategies that have been developed to analyze chemistry. HOW DO WE ANALYZE
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Technical Paper WFGD Case Study -- Maximizing SO2 Removal by Retrofit with Dual Tray Technology A.A. Silva and P.J. Williams The Babcock & Wilcox Company Barberton‚ Ohio‚ U.S.A. J. Balbo Michigan South Central Power Agency Litchfield‚ Michigan‚ U.S.A. Presented to: EPRI-DOE-EPA-AWMA Combined Power Plant Air Pollutant Control Mega Symposium August 28-31‚ 2006 Baltimore‚ Maryland‚ U.S.A. 6 The Babcock & Wilcox Company BR-1785 WFGD Case Study - Maximizing SO2 Removal
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Brass Background The scientific concepts involved in this lab include Spectroscopy‚ Beer’s law‚ Calibration curve‚ concentration‚ and electronic transitions. The main objective of this experiment is to see how the percent composition of brass can be determined to verify the properties influenced by copper and zinc. Brass is a generic term for alloys of copper and zinc. The main technique used in this experiment is Spectroscopy. The three equations used in this lab are: Y = mx + b‚ where y = absorbance
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Lab #4 Emission Spectroscopy and Flame Test Date of Lab: 10/24/13 OBJECTIVE To observe a continuous spectrum‚ emission spectrum‚ and an absorption spectrum‚ and be able to distinguish among the three. To be able to identify metal ions by doing a flame test and looking at a spectrum. At the same time increasing the ability to use and understanding of lab equipment‚ in this case‚ a spectroscope. To be able to calculate the frequency and energy of certain frequencies of light. PROCEDURE
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effects of concentration of gum tragacanth (0.1 to 1%) and concentration of HAuCl4 (0.1 to 1 mM) on the synthesis of gold nanoparticle were studied. The synthesized AuNPs were stored in amber color vials at 4oC. The nanoparticle formulation showed the absorption maxima at
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blue)‚ passes through an identical cuvette containing only the solvent. The intensities of these light beams are then measured by electronic detectors and compared. The intensity of the reference beam‚ which should have suffered little or no light absorption‚ is defined as I0. The intensity of the sample beam is defined as I. Over a short period of time‚ the spectrometer automatically scans all the component wavelengths in the manner described. The ultraviolet (UV) region scanned is normally from 200
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