Ben Quinones AP Chem Mr. Perry 25 January 2013 Molar Mass by Freezing Point Depression Conclusion: My Lab unsuccessfully found the molar mass of the unknown given to us in the lab. We were tasked with finding the molar mass of an unknown compound using the colligative property of Freezing Point Depression. The way we did this was first finding the temperature at which ice crystals form for just regular BHT. Luckily thanks to our TA we were given temperature probes so we could pinpoint exact
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slavery in America. But it wasn’t that easy to just end slavery just like that and have these amendments passed. There have been multiple wars and many discussions between world leaders just because of the discussion of ending slavery. The major turning point in the discussion for the end of slavery was the Haitian war. Where black people stood up and fought against their masters‚ establishing their independence. This got the world talking about slaves and how human they really were since slaves were thought
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STRENGHTS GMA’s creation of six to ten million jobs within her six years administration is possible considering many factors that can help build up those number of jobs that will provide living to the unemployed‚ support three million entrepreneurs and the micro‚ small and medium enterprises and develop 2 million hectares of land for agricultural businesses. This job generation has been expected to raise two million new jobs by the development of new lands‚ three million for the micro enterprises
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Use this packet and your book to answer the questions throughout this packet. Organic Nomenclature - Alkanes‚ Alkenes‚ Alkynes Naming organic compounds can be a challenge to any chemist at any level. Historically‚ chemists developed names for new compounds without any systematic guidelines. In this century‚ the need for standardization was recognized. For simple molecules‚ the nomenclature system worked out by the International Union of Pure and Applied Chemists (IUPAC) works well. For complex
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Homeostatic Mechanism using the Comparitive Melting-Point Method for two Crab Species. Abstract Two crab species‚ Plagusia and Cyclograpsus‚ were collected from a local estuary in the littoral and deep water zone for osmoregulation studies. To examine differences in osmoregulatory mechanisms among the species‚ haemolymph of the specimens was extracted once they were acclimated to varying concentrations of seawater. Using the comparative melting-point‚ capillary tubes were filled with small samples
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IONIC COMPOUNDS In chemistry‚ an ionic compound is a chemical compound in which ions are held together in a lattice structure by ionic bonds. Usually‚ the positively charged portion consists of metal cations and the negatively charged portion is an anion or polyatomic ion. Ions in ionic compounds are held together by the electrostatic forcesbetween oppositely charged bodies. Ionic compounds have high melting and boiling points‚ and they are hard and very brittle. Ions can be single atoms‚ as the sodium and chlorine in
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Levels of Life Worksheet Complete all three parts of this worksheet. Part I Atomic Structure Fill in the missing information on atomic structure and organic compounds. Atomic StructureSubatomic ParticleChargeLocation in an AtomProtonPositiveNucleusNeutronNeutralNucleusElectronNegati- veCircular Orbit around nucleus Organic CompoundsLarge Biological MoleculeAtoms it ContainsMonomer(s) Function(s) in Living OrganismsCarbohydratesC‚ H‚ and OMonosaccharidesSource of energyLipidC‚H and OGlycerol and
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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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Identification of Unknown Organic Compounds by Melting Point‚ Boiling Point‚ and Infrared Spectroscopy Methods and Background The goal of this laboratory experiment was to determine the structure and identity of an unknown solid and an unknown liquid by using elemental analysis‚ index of hydrogen deficiency‚ infrared spectroscopy‚ melting point (for solid)‚ and boiling point (for liquid). In this laboratory‚ we were given unknown solid “C” and unknown liquid “D”. The empirical formula
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ANALYTICAL AND ORGANIC CHEMISTRY LECTURER’S NAME : DR.RAPIDAH OTHMAN COD SUBJECT : NKB 10103 NAME : NUR NADIRAH BINTI BAHARUDEAN ID NUMBER : 55220114255 CHAPTER : ORGANIC CHEMISTRY CONTENTS 1‚4-BENZENEDICARBOXYLIC ACID Introduction The organic compound’s group that I’ve chosen in this assignment is 1‚4-benzenedicarboxylic acid. 1‚4-benzenedicarboxylic acid and also called as Terephthalic acid containing the carboxyl group and benzene group. Sometimes it simply referred to as a acid group
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