Atomic Spectroscopy using a Constant Deviation Spectrometer with Fabry-Perot Etalon Abstract A constant deviation spectrometer with Fabry-Perot etalon has been used to investigate the various atomic emission characteristics from a Zn-Cd-Hg lamp‚ a low pressure Hg lamp and a Ne lamp. The Fabry-Perot etalon of Free Spectral Range 0.010 cm-1 was used to resolve the fringes of the Hg 546.0731nm spectral line‚ and the 594.4834nm‚ 614.3063nm‚ 640.2246nm and 650.6528nm spectral lines of the Ne lamp
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Purpose: To determine the percent magnesium by mass in magnesium oxide and to observe if the percentage composition is constant by comparing class results. Hypothesis/Prediction: The percent composition by mass of magnesium in magnesium oxide will not change significantly with each group that conducted the experiment. The composition of each substance should stay the same and any differences must be due to some error. Materials:Magnesium stripCrucibleCrucible coverClay triangleIron ringRetort standTongsBalanceBunsen
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Photoelectric Effect: Determining Planck’s Constant Friday‚ Section 006 TA: Yilikal Ayino John Greavu with Daniel Erickson & Kevin Haar January 31‚ 2014 PreLab Up until the eighteenth century‚ particle theories of light dominated physics‚ primarily due to the work of Isaac Newton. Thomas Young’s 1805 famous double-slit experiment‚ which showed that light mimics a wave‚ extinguished some of these early views. However‚ in 1887‚ Heinrich Hertz – who is‚ coincidentally‚ perhaps better known for definitively
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Project Specifications Project Title: Variable Pitch Constant Rotational Speed Wind Turbine Project Aims This project can be divided into 3 three parts. The first part is to develop a variable pitch propeller. Then second and the main aim of this project is to design a control mechanism by which the propellers would rotate at a constant speed‚ at varying wind speeds by adjusting their pitch. This would be achieved by using wind sensors (anemometer) and a microcontroller. The sensors would
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Kim Dec. 15‚ 2011 Abstract Two experiments were conducted to figure out the value of the formation constant of tetraamminecopper(II)‚ Kf‚ with different methods and which experimental method produces more accurate result. One was electrochemistry using a Daniel cell and the other one was spectrometry by estimating concentration of complex solution using a calibration curve. The formation constant of cupric ammine complex Cu(NH3)42+‚ Kf‚ came out with 1.93x10^15 using electrochemical cell method
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SPECTROPHOTOMETRIC DETERMINATION OF THE EQUILIBRIUM CONSTANT OF A REACTION Methodology The following stock solutions were prepared: 1.0 M HCl‚ 0.1 M HCl‚ 0.1 M KSCN‚ 0.002 M KSCN (in 0.1 M HCl)‚ 0.2 M FeCl3 (in 0.1 M HCl)‚ and 0.002 M FeCl3(in 0.1 M HCl). Using the prepared stock solutions‚ the standard (Table 1) and Unknown (Table 2) solutions were prepared. Table 2. Preparation of Standard Solutions 0.10 M KSCN 0.002 M FeCl3 0.1 M HCl Blank 2.0 ml 0.0 ml 8 ml S1 2.0 ml 0.1 ml 7
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The impact of constant warfare on Roman society was that since there was an overexpansion of the empire. Because of the overexpansion‚ the dilution of the Roman society got many different cultures. When the Visigoths were conquered‚ the conditions of their “surrender” was that they had to join the Roman military service. They were trained and equipped by Romans that created the situation that allowed the successful. The family farms were devastated by the warfare. The farms were eventually replaced
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Bonfa only one main idea exist. In the beginning you are able to hear all the members of the ensemble playing and then you begin to hear soloist playing. At 1.20 you hear wind instrument /s come in for their solo‚ sounds like a saxophone. There is a constant steady tempo throughout. The piano solo comes in at approx. 2.20 and plays an upbeat tune until the main theme again which repeats about 3.20 and 3.48. The vivid picture that is created in this piece relies on unity that is created by repetition
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The argument that I am proposing is that Dr. Manhattan is in a constant state of nostalgia. As he experiences all of time at once‚ his past is becoming larger. As his past becomes larger‚ he values all those previous moments more so than his future. Dr. Manhattan values his past over his future so much so that he forces his responses in the present to be a product of his past and not his future. Perhaps a clearer way to say this is to suggest that Dr. Manhattan wants to be himself‚ and not care about
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Absorption to Activation Energy Calculating the rate constants‚ half-lives‚ and activation of a reaction by monitoring the change in absorption Department of Chemistry Dusten Dussex Lab partner: John Drury Lab date: February 7th‚ 2013 Due date: February 21st‚ 2013 Introduction In this experiment we are analyzing the relationship between reaction rates at different concentrations and temperatures to determine the true rate constant‚ activation energy‚ reaction orders‚ and half-life
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