Chemistry Melting Ice Essays and Term Papers

  • Nitration of Methyl Benzoate

    m-nitrobenzoate from methyl benzoate and will be purified by recrystallization with methanol. To make sure that the correct product is formed, the melting point and tlc profile are obtained. For the results, the mass of the conical flask was 89.222g, adding 10 drops of methyl benzoate having 90.121g,...

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  • Green Chemistry

    obtaining a melting point and inferred spectroscopy. The experiment was carried out to see if bleach could oxidize borneol and if it is greener than using a Jones reagent. Sure enough camphor was made with a 4.03 g of unsublimed camphor and 0.08g of pure camphor with a 2 % yield (in moles). No melting point...

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  • What Makes Ice Melt Faster

    Interaction Of Outside Influence Makes Ice Melt Fastest? A. Explain the significance of the given factors in your project design plan: • Problem statement • Relevance of your testable question Problem Statement: I have lived in a place that during the winter, ice would form on the streets and sidewalks...

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  • Lab Report Boiling Point and Melting Point

    repCHEMISTRY I - LABORATORY EXERCISE MANUAL LABORATORY EXERCISE 10: Melting Point and Boiling Point Determination This is a traditional lab. You'll simply follow the step-by-step procedure, keeping records of your measurements and observations. Each student will write their own lab report, which should...

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  • Chem lab

    77.6% yield. Melting point of the recovered solid was also determined to be 118.8-122.8 °C, which shows there may have been some impurity in the solid. Part B: A -10-260 °C thermometer was calibrated using 3 calibration points. The freezing point mark was calibrated using crushed ice and distilled...

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  • Lab 1

    done by measuring the melting point of the crystals and of the standard. This is fulfilled by using capillaries opened at one end containing a very small amount of both samples (dried product and a 1:1 mixture of the dried product with standard), and inserting them into the melting-point apparatus, where...

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  • crystallization

    CHEMISTRY 343 - Organic Chemistry Laboratory I – Summer 2013 Lab 32: Crystallization of Benzoic Acid You will learn and apply the technique of crystallization for the purification of a crude or impure organic substance. You will also learn more about the technique of melting point determination...

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  • Aldol

    Aldol Condensation: Synthesis of Dibenzalacetone Aldol Condensation: Synthesis of Dibenzalacetone Leah Monroe May 15, 2003 Organic Chemistry Lab II Experiment performed on May 6 and 8, 2003 Abstract: The purpose of this experiment was to synthesize dibenzalacetone via an aldol condensation...

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  • Oxidation of Cyclohexanone to Adipic Acid

    giving a percent yield of 113.97%. Although the product was allowed to dry for one week, residual moisture was still present in the sample and a melting point could not be obtained. This error in the experiment either resulted from adding too much water or not allowing the product to remain in the Hirsch...

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  • Preparation of Pure Diphenyl

    electronic weigh, electrothermal heater, oven, aspirator, electrothermal device to determine melting point. Chemicals : Crude diphenyl (3.0 g), ethanol (20 mL), decolourising charcoal (1.0 g), boiling chips, ice Procedure : Crude diphenyl (3.0 g) is measured and obtained using a beaker and a laboratory...

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  • Panacetin

    Alicia Parker 9/22/2011 Experiment 2: Recrystalization and melting point: Identifying a component of “ Panacetin” Catalyst: Organic Chemistry Laboratory 2500 Pg 7-11 Structures: Procedure/Observations: The initial amount of the unknown sample...

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  • An Ice Calorimeter Determination of Reaction Enthalpy

    Thermochemistry: An Ice Calorimeter Determination of Reaction Enthalpy D. F. Nachman 6/23/2010 Abstract: An ice calorimeter was used to study the reaction of magnesium metal and 1.00M sulfuric acid solution: Mg(s) + H2SO4(aq) →MgSO4(aq) + H2(g). We found the experimental molar enthalpy of reaction...

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  • My Champion Person in My Life

    October 17, 2012 Lachu Katel REA112 FALL2012 Summary Bad News Chemistry: Carbon Dioxide Makes Ice Weaker (From Smithsonian Magazine, October 11, 2012) The recent researches and findings have made obvious that increasing amounts of Carbon Dioxide in the atmosphere has...

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  • Synthesis of Grignard Reagents

    The result is an alkoxide that is then protonated to give the alcohol, triphenylmethanol. The purity of the final product will then be considered by melting point and IR spectroscopy. Final purified triphenylmethanol weighed 8.02 grams and melted at 158.5-162 degrees Celsius. Introduction: Grignard...

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  • Separation of a Base Neutral Mixture

    collected and characterized by melting temperature analysis. Ev OBJECTIVES    In this experiment, you will Separate a mixture containing benzoic acid, 3-nitroaniline, and naphthalene. Calculate the percent recovery of each component in the mixture. Measure the melting temperature of each isolated...

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  • Grignard synthesis of trimethylphenol

     Grignard Synthesis of Tirphenylmethanol David Szuminsky Organic Chemistry Lab II Shaopeng Zhang Monday 1PM 2/10/14 & 2/24/14 - Abstract A sample of triphenylmethanol was prepared using Grignard synthesis techniques. Reflux was used in order to speed...

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  • Multistep Synthesis of Benzilic Acid

    crystallization, and melting-point determination were used. Utilizing these techniques a product yield of 93% for benzil and 57% for Benzilic acid was obtained, as well as a melting point range of 94.8 – 95.4oC for benzil and 152.0 – 153.9oC for Benzilic acid. With the literature melting-point value of benzil...

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  • Preparation of Tin Tetraiodide

    09/06/2012 Introduction The objective of this project was to prepare tin tetraiodide through the following reaction: Sn+2I2∆SnI4 and to measure the melting point of tin tetraiodide. Tin tetraiodide was recrystallized after the synthesis. The percent yield and the theoretical yield of tin tetraiodide were...

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  • Exp 3 Synthesis Of Aspirin Formal Lab Report

     Experimental Synthesis of Aspirin and Melting Point Purity Analysis Donald Yeargin CH 222, Section 24221 Department of Chemistry Portland Community College Portland, OR Abstract The various methods available to synthesize aspirin lead to the need to examine and evaluate production efficiency...

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  • Freezing Melting Lab

    Freezing and Melting of Water. 10/24 Richard Landolfi Due Date:11/1 Purpose the purpose of this lab is to determine the freezing and melting temperature of water. Freezing temperature, the temperature at which a substance...

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