Experiment 2 Date: 24 January 2006 Title : Crystallization of a Crude Sample Objective : Preparation of pure diphenyl via crystallization of crude diphenyl dissolved in ethanol. Structural Formula of Organic Substances Involved : Diphenyl Ethanol Apparatus : Round-bottom flask (100 mL)‚ measuring cylinder (50 mL)‚ conical flask (50 mL)‚ filter flask‚ beaker (100 mL)‚ stemless glass funnel‚ Hirsch funnel‚ capillary tube‚ long glass tube‚ watch glass‚ glass vial‚ water condenser
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PERIODIC CLASSIFICATION OF ELEMENTS Introduction There are 115 elements that are known at present. Some elements have similar properties whereas some others have completely contrasting properties Scientists began to look for some pattern in the properties of these elements Dobereiner’s triads In 1817‚ Johann Wolfgang Dobereiner‚ a German chemist‚ classified elements into groups based on their properties. He kept all elements having similar properties in one group. Most of his groups had three
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P8 PROLOGUE Classmate P17 CHAPTER 1 The Information Broker P40 CHAPTER 2 Iza-Nii P75 CHAPTER 3 The Flea P111 CHAPTER 4 The Vice President of the Club P169 CHAPTER 5 Orihara Izaya P207 EPILOGUE & NEXT PROLOGUE Me TSUKUMOYA SHINICHI’S ACCOUNT Is Orihara Izaya lonely or not? I have been asked that question. This is just my personal opinion. I think he feels lonely‚ but at the same time satisfied. His love has been‚ is‚ and always will be unilateral. It is not that he has never been loved; however
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Blue - People Purple - Notes Green - PDB Red - Competitors Orange - Decisions Sarah Ryan - Vice President of Marketing‚ Portland Drake Beverages (PDB). PDB - Manufacturer of organic juices and sparkling waters. Positioning: After segmenting and targeting. Where in customers’ minds the product occupies relative to competing products. Crescent: Non-alcoholic functional beverage‚ impending launch in three U.S. markets. Acquired in July 2013. Energy-enhancing‚ hydrating‚ all-organic ingredients
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Introduction: The periodic is a table of the elements‚ organized in order of increasing atomic number. Elements that have similar chemical properties and electronic structures appear in vertical columns‚ or also called groups. The Periodic Law states that when elements are placed in order of increasing atomic number‚ their physical and chemical properties display a periodic pattern. The purpose of the lab was to discover how two periodic properties‚ atomic radius‚ and first ionization energy‚ vary
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CHEM111AC‚ Experiment#9 - Ionic Reactions Discussion/Error Analysis In the first part of this experiment‚ the student was presented with 7 unique and unidentified bottles of solutions labeled A-G and was expected to be able to analyze the 7 solutions through trial and error and mixing them with one another. For solution A: mixing A + B formed a precipitate‚ A + C generated heat‚ A + D gave no reaction‚ A + E gave no reaction‚ A + F gave no reaction‚ A + G formed a precipitate. For solution B: mixing
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Andrew Hom Chemistry CP O3.03 Periodic Trends Part I: Atomic Radius Trend Going Across the Periodic Table Part 2: Atomic Radius Trend Going Down A Group Part 3: Analysis and Conclusion After completing both graphs‚ answer the questions below in complete sentences. Both the question and your answer should be included in the document (along with the two graphs) that you submit to your instructor. 1) Refer to the graph that you created in Part 1 of this assignment. Describe the general
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Facts of the periodic table While Dmitri Mendeleev is most often cited as the inventor of the modern periodic table‚ his table was just the first to gain scientific credibility‚ and not the first table that organized the elements according to periodic properties. There are 90 elements on the periodic table that occur in nature. All of the other elements are strictly man-made. Technetium was the first element to be made artificially. The International Union of Pure Applied Chemistry‚ IUPAC‚ revises
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Narendra Boppana‚ Nasser Ali‚ Martin Chavez‚ Sear Introduction: Ion Exchange Chromatography is a process where the ionic exchange occurs in between the stationary phase and the sample in the mobile phase‚ by using this ionic exchange phenomenon it is easy to separate the compounds. Ionic exchange depends on the electrical properties of the anions and cations. Ionic exchange chromatography is important tool in the separation of the charged species mainly in the biological‚ inorganic and environmental
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Abacus Inc. has asked you price a 5 year bullet bond issue for them‚ with Price‚ Yield to Maturity and Modified Duration. There are no comparable existing issues in the secondary market either by Abacus or a competitor and so you will need to price the issue from scratch. You have the following set of US Treasury bond data and consultations with your Bank Equity Analyst and Debt Analyst suggest that a Z-spread for Abacus of 200 bps over Treasuries and a coupon rate of 6.5% should be appropriate
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