Parkin‚ G. F. Chemistry for Environmental Engineering‚ 5th ed.‚ McGraw Hill‚ 2003. Theory The dissolution and evolution of dissolved oxygen (DO) in the air-water system can be represented by the equation: [pic] (1) which has the equilibrium constant: [pic] (2) where aO2(aq) is the activity of oxygen in the water and fO2(g) is the fugacity‚ or activity‚ of oxygen in the gas phase. When the fugacity of oxygen is approximated by its partial pressure (PO2) and the activity
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5th Canal Street Fire Investigation/Cause Determination Final: Term Paper Inna Fabyanchuk FISC 205 12-6-2012 Final Paper: Scene Investigation and Cause Determination. Dispatch: Call came in at 6:20 am; a fully involved structure fire on (5th Canal St)‚ 1 victim‚ in need of mutual aid and the fire department. Witness states that visible smoke and fire is coming through the front window and that there may be residents inside because of a parked car outside of the house. The fire department
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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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Executive Summary In today’s competitive world an employee satisfaction is very important for companies as a satisfied employee would produce more which in turn would give better benefits to the company. Job satisfaction is closely related to motivation level of the employees which depends on many factors such as monetary and non monetary benefits‚ working environment‚ co-workers‚ nature of the job etc.‚ when all these factors are kept in proper levels the employee satisfaction level increases or
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Determination of the Solubility of Calcium Hydroxide Apparatus * Solid calcium hydroxide * 0.4 mol/dm hydrochloric acid * Distilled water * Pipette * Triple valve rubber pipette filler * Conical flask * Beaker * White tile * Clamp and stand * Methyl orange indicator Producing the calcium hydroxide solution 1. Roughly fill a beaker with 200cm³ of distilled water. This does not need to be accurate because samples will be taken from this. 2. Add solid calcium
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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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ABSTRACT The average concentration of CaCO3 obtained was 212 ppm‚ with a standard deviation of 1 ppt. The results indicate that the unk B tap water can be considered as hard water. INTRODUCTION Hard water is due to metal ions (minerals) that are dissolved in the ground water. These minerals include Ca 2+‚ Mg2+‚ Fe3+‚ SO42-‚ HCO3-. When this water evaporates or boils‚ the difficult to dissolve metal salts remain as a scaly residue. Hard water inhibits the effectiveness of soap and detergents
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the high concentration of the ions‚ the silver chloride coagulated to a desirable size that could be filtered and washed with nitric acid through a previously weighed crucible. Once the sample was washed free of impurities‚ it could be dried to a constant mass which allowed for the mass of chloride to be determined using a calculation explained later. As it
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Journal of Engineering and Applied Science Volume 4‚ June 2012 © 2012 Cenresin Publications www.cenresinpub.org DETERMINATION OF THE RHEOLOGICAL PROPERTIES OF DRILLING FLUID FROM LOCALLY SOURCED CLAY FROM VARIOUS GEOGRAPHICAL AREAS Ajugwe .C‚ Oloro. J and 3Akpotu. D. Department of Petroleum Engineering Delta State University‚ Oleh Campus E-mail: joloroeng@yahoo.com ABSTRACT The rheological formulation of our locally sourced bentonite clay in substitute for the imported foreign bentonite clay
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