North Greenville University‚ I was a member and a student of the Spartanburg County School District 2. Specifically‚ I was part of the Boiling Springs community. A remote place that didn’t have much to offer at first glance; although‚ this was probably due to my birth in a crowed and industrialized city. Yet‚ during the almost decade that I have lived in Boiling Spring it has been becoming increasingly similar to the hustle and bustle that I left behind. New businesses and roads lead to families
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CHM1032L pre/post lab instructions Preparation is a key to success in this lab. For this reason‚ you are required to thoroughly read through the experiment information presented in the lab manual‚ and complete a pre-lab for each experiment you do. The prelab must be completed prior to the day of the experiment. Each Friday I will ask to see your completed prelab before I allow you to enter the lab. If you have not finished the pre-lab‚ I will not allow you to enter the lab and you will receive
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information about boiling water. If you cover the tin and allow the water and air to cool down‚ the air will cool and contract‚ lowering the pressure in the tin. If it lowers enough‚ the partial vacuum will collapse the walls of the can! The boiling point definitely reduces with air pressure. There is a famous demonstration where boiling water or coffee is drunk‚ the trick is it was in a vacuum chamber where it boiled at room temperature. The actual definition of the boiling point of water is the
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BOILING AND CONDENSATION BOILING • Phase change phenomenon where in transformation of liquid to vapour occurs at the saturation temperature of the fluid. It occurs at a solid/liquid interface due to convection heat transfer from the solid and usually occurs at surface temperatures higher than the saturation temperature of the fluid Agitation of fluid by vapor bubbles provides large convection coefficients Modified Newton’s law of cooling qs’’ h Ts Tsat Te • • • BOILING – CLASSIFICATON
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Example lab report of Synthesis of potassium tris (oxalato) ferrate (III) trihydrate Posted by Nurul Yunaliyana Experiment 5: Synthesis of potassium tris (oxalato) ferrate (III) trihydrate Purpose: to synthesis potassium tris (oxalato) ferrate (III) trihydrate ‚K3 [Fe (C2O4)3].3H2O. Introduction: Ferrous ammonium sulfate‚ Fe(NH4)2(SO4)2.6H2O is dissolved in a slightly acid solution‚ excess oxalic acid‚ H2C2O4‚ is added and the following reaction takes place: Fe(NH4)2(SO4)2.6H2O + H2C3O4
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SHORT INTRODUCTION TO TWO-PHASE FLOWS Condensation and boiling heat transfer Herv´ Lemonnier e DM2S/STMF/LIEFT‚ CEA/Grenoble‚ 38054 Grenoble Cedex 9 Ph. +33(0)4 38 78 45 40‚ herve.lemonnier@cea.fr herve.lemonnier.sci.free.fr/TPF/TPF.htm ECP‚ 2011-2012 HEAT TRANSFER MECHANISMS • Condensation heat transfer: – drop condensation – film condensation • Boiling heat transfer: – Pool boiling‚ natural convection‚ ´bullition en vase e – Convective boiling‚ forced convection‚ • Only for pure fluids. For mixtures
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Lab 17 Amino Acids and Proteins Lab date 10/22/2013 12-1350 I Purpose The purpose of this experiment was to separate mixtures of II Method For a complete list of experimental procedures see prelab outline attachment #1. “For a complete list of experimental procedure see Seager‚ Spencer L. and Slabaugh‚ Michael R. Safety-Scale Laboratory Experiments for Chemistry for Today General‚ Organic and Biochemistry; Thomson Brooks/Cole‚ Belmont‚ CA‚ USA‚ 2008; pp.221-225”. III Data Part A Mass
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the freezing point depression of a known amount in an aqueous solution. Freezing point depression is a colligative property of solutions. There are three other properties‚ which are boiling point elevation‚ vapor pressure depression‚ and osmotic pressure. Colligative properties of a solution depend on the amount of solute and solvent molecules and not the specific properties of the molecules. The temperature at which the solvent starts to freeze will be specified as the freezing point of the solution
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Chemistry Lab Report Water Hydration Introduction: A hydrated crystal or hydrated occurs when water becomes tightly attracted to a metal salt base on it’s polarity. The water molecules maintain integrity as molecules‚ however they are considered to be part of the formula of the hydrate. When the hydrate metal salt crystal is heated‚ the attractions to the water are broken by the heat energy and the water escape from the crystal. After heating the salt crystal is called as anhydrous‚ which
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motion. 2. To establish the relationship between angle of repose ∅ and μ METHODOLOGY Determination of the coefficient of Friction. - Place the wooden plane horizontally. Measure the weight of the block. Slowly add weights in the pan until you observe a uniform sliding motion of the black. Records the weight. Calculate μ for each trial and finally determine the average value. Determination of the Angle of Repose. - Remove the string that is tied to the block‚ facing its
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