Aim : To prepare an ester using reflux Hypothesis : The equation was written out for the reaction and pentyl ethanoate was predicted as being the ester that would be formed. Equipment * 10 ml pentanol | * condenser | * 10 ml glacial acetic acid | * Heating Mantel | * 1 ml conc. Sulfuric acid | * Funnel | * 50 ml flask | * 15ml 1molL-1 Na2CO3 | * Boiling chips | * Seperating Funnel | * Retort Stand | * Safety Glasses | Method 1. 10 ml of Pentanol
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Grignard reaction Abstract: In this laboratory‚ triphenylmethanol was synthesised from reacting benzophenone and bromobenzene using Grignard reaction. As the reaction was to set up to produce a Grignard reagent and then recrystallize it to obtain pure sample. The percentage yield obtained was 55% and its melting point was 161 co which is within the literature value 160-163 co. In addition to that the IR spectroscopy confirmed the molecule structure to be triphenylmethanol. Introduction: The Grignard
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Shazeda Patel 100202795 Karen Budra English 1127 April 1‚ 2013 Ester Lucero Mango “From the time I was very young‚ as long as I could remember‚ I have felt the world is magic‚ that there are two realities: one that is palpable… and the other one‚ the night reality of secrets… a lunar reality”- Isabel Allende (14 De Zapata). Isabel Allende is a Chilean woman who was raised in various locations around the world. Since her father left her when she was a child she lived with her mothers
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Title: Surface Area vs. Rate of Reaction Research question: How can different temperatures affect the rate of reaction‚ when the reactant is in powder form? Hypothesis: If the temperature of the water is increased‚ the rate of reaction will also increase as the heat given off to the particles will increase leading to more movement and frequent collisions. Background information: Chemical reactions occur when two or more molecules interact with each other‚ but that can only occur when they
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INTRODUCING ESTERS This page explains what esters are and looks at their simple physical properties such as solubility and boiling points. It includes an introduction to more complicated naturally-occurring esters like animal and vegetable fats and oils. What are esters? Esters are derived from carboxylic acids. A carboxylic acid contains the -COOH group‚ and in an ester the hydrogen in this group is replaced by a hydrocarbon group of some kind. This could be an alkyl group like methyl
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Cassie Essary Tim Petete Ethnic American Literature November 12‚ 2009 Angel’s Psyche in Ester Lucero One of the most fascinating aspects of any story is the formation of it’scharacters. The way the author chooses to describe them‚ give them personalities‚ is how the reader will see their lives. A character’s psyche and the way he thinks about events around him change the way a reader perceives the story. Authors have an amazing chance to shape and bend a story to fit what they want
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Light Reactions Lab This lab explores the effect of light intensity and light wavelength on photosynthesis. The quantity of energy [ATP] produced will change depending upon on these parameters. Use "Johnson Explorations: Photosynthesis" located at http://www.mhhe.com/biosci/genbio/biolink/j_explorations/ch09expl.htm Examine the diagram before clicking "skip intro" so you have an idea what is going on. The animation show the movement of photons‚ electrons‚ water‚ protons‚ ATP etc. relating to
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Chemical Reactions Lab Synthesis Reactions: Synthesis reactions occur when two elements or compounds combine to create one single compound. The general equation of synthesis reactions is: A+B→AB. The following are the complete balanced equations for the five synthesis reactions performed in the lab. Reaction 1: Reaction 2: Reaction 3: Reaction 4: Reaction 5: The reaction of CO2 and water is a prime example of a synthesis reaction. This is a synthesis reaction because it follows the general
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Enzymes are proteins or nucleic acids that catalyze reactions. They are able to speed up reactions by reducing the activation energy of a reaction. Each kind of enzyme has a specific shape that matches its substrate so it can bind to its active site. Enzymes convert their substrates into a product. Enzyme activity are affected by factors such as temperature‚ pH‚ and time. If an enzyme is exposed to extreme heat‚ it will become denatured‚ that is‚ to become deformed and lose its original shape which
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Chemical Reactions Lab Objectives: 1. To examine a variety of reactions including precipitation‚ acid-base‚ gas forming‚ and oxidation-reduction reactions. 2. To identify the products formed in these reactions and summarize the chemical changes in terms of balanced chemical equations and net ionic equations. 3. To identify the species being oxidized and reduced in oxidation-reduction reactions and determine which species is the oxidizing agent and the reducing agent. Chemical equations represent
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