Harper Chemical Jeffrey Gomez February 5‚ 2013 Introduction Harper Chemical’s forecasting for its new project called Domanite was very inaccurate. Expenses were estimated with a failure to account for unexpected expenditures‚ and spending was not regulated well. Sales figure estimates were inflated‚ and did not account for the difficulty of opening a new market. Unexpected Losses It was originally estimated that the sales volume of Domanite would hit 55‚000 tons per year by 1983.
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Jell-O Lab Guiding Question: Are some laundry detergents better than others? Purpose: We intend to test if the cost of a detergent affects its quality but putting 3 drops of Jell-O into 25mL of Jell-O and examining how much of the Jell-O dissolves. Hypothesis: If the cost of the detergent increases‚ then the amount of Jell-O dissolved will increase by 0.3 cm. Materials/Equipments: * 4-1mL Pipettes * 5cm long standard drinking straw with a diameter of .6cm. * Jell-O brand
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De-esterification for Synthesis of Benzoic Acid BATCH REACTOR Shane Bulk Chris Crosley David McGuire Max Skula Yunjing Song Shriram Sundarraj Nelson Zhou 155:416 Process Laboratory II Professor Jerry Sheinbeim January 28 – February 28‚ 2014 ABSTRACT The observed reaction that took place in this experiment was the de-esterification of ethyl benzoate to form benzoic acid. This experiment was used to determine the rate constant k of the synthesis of benzoic acid at different temperatures
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lab to observe the various melting points of Naphthalene and Biphenyl when the percentage of composition was altered. A eutectic point of 45 °C at 52% Naphthalene was determined from the class data. An unknown crystalline substance was identified to be Benzophenone by mixing and finding its melting point with known substances. Introduction Organic compounds are categorized by their physical properties and/or chemical reactions. Naphthalene is classified as an aromatic hydrocarbon that
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Substance | Structure | M.W. g/mol | Density g/cm^3 | MP (C) | Hazards | Naphthalene | | 128.17 | 1.14 | 80.26 | White crystalline solid‚ with odor | benzophenone | | 182.217 | 1.11 | 47.9 | Barely hazardous‚ don’t get in contact with eyes or skin | Methanol | | 32.04 | 0.79 | -98 | Extremely flammable | Petroleum ether | | 86.18 | 0.77 | -95 | Extremely Flammable | Procedure: 1. 2. Add 80mg of naphthalene to Craig tube. Add few drops of methanol hot solvent. 3. Place tube in
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Nitration of Naphthalene Wed 2/25/2015 Lab report # 1 Abstract: The purpose of this experiment was to nitrate naphthalene with nitronium ion‚ which is formed at low concentration from a reaction of nitric acid and sulfuric acid. The percent yield from the experiment was 54.4% of the product‚ and the melting point of the possible results were 59 °C for 1-nitronaphthalene‚ and 78°C for 2-nitronaphthalene. Introduction: Polynuclear aromatic hydrocarbons such as naphthalene can be nitrated
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Experiment 3: Resonance Energy of Naphthalene by Bomb Calorimetry Cameron Fowler CHEM 457: Lab Section 4 Submitted: 11/4/10 Lab Group #3: Michael Hyle Neil Baranik Tim Riley Abstract: The enthalpy of combustion of naphthalene was experimentally determined to be -5030.44 ± 78.98 kJ/mol which was a 2.5% error from the literature value of -5160 ± 20 kJ/mol.2 The theoretical enthalpy of combustion of solid naphthalene was calculated to be -6862.68 kJ/mol using bond energies for the gaseous
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Freezing Point of Naphthalene I. Purpose To determine the freezing point of a known substance‚ naphthalene II. Materials ringstand gas source test tube test tube clamps thermometer naphthalene Bunsen burner goggles hose stopwatch III. Procedure 1. Assemble the Bunsen burner‚ attaching one end of the hose to the burner and the other to a gas source. 2. Assemble the ring stand so that a ring clamp is attached to the stand holding the test
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RECRYSTALLIZATION AND MELTING POINT DETERMINATION OF BENZOIC ACID ANSWERS TO QUESTIONS 1. How does the use of fluted filter paper hasten filtration? Why is it advisable to place a small piece of wire between the funnel and the mouth of the flask during hot filtration? Fluted filter paper is effective in preventing crystal formation in the filter paper. It is also often used in filtering hot saturated solution used during crystallization. One major advantage of a fluted filter is that it increases
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Separation of a Carboxylic Acid from a Neutral Compound by Extraction Reference: Smith‚ Chapter 2 (Acids and Bases) Introduction Carboxylic acids and phenols are two families of organic compounds that contain carbon‚ hydrogen and oxygen‚ and also react with water to yield an excess of hydronium ions over hydroxide ions. Pure water has a pH of 7‚ which means it has a hydronium ion concentration‚ [H3O+] of 10-7 M (M = molarity‚ moles/Liter). The hydronium ions in pure water come from the self-ionization
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