Chem 51LC Experiment 6 Lab Report Aldol Reaction Purpose: The purpose of this experiment is to be able to conduct an aldol condensation reaction using an unknown aldehyde and an unknown ketone. H NMR is used to identify the unknown aldehyde and ketone. Melting point is used to identify the aldol condensation reaction. Theory: Condensation reaction is also known as a dehydration reaction. In the mechanism of condensation reaction‚ a bond is formed between two molecules and creates water as a
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Behind the Wheel I slid into the cream pleather bucket seat‚ strapped the old black seatbelt across my chest‚ adjusted the mirrors‚ put one of the two keys for the vehicle into the ignition‚ stepped on the clutch‚ turned the key and felt the rumble and shake of the snorting engine. I set the CD face plate in its niche and tuned to my favorite station. I gazed over at my dad thinking‚ “I did it! I had purchased my car on my own!” I could barely hear my thoughts over the sound of the engine‚ but my
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Behind the Wheel Learning to drive can be nerve wrecking for people. It is a craze and a basic necessity in the busy life of today. People want to learn how to drive for many reasons‚ but learning how to drive is a long process. Learning to drive takes patience‚ alertness‚ and confidence. Patience is the art to driving. If a person does not have much patience‚ then learning to drive can be really difficult. Drives must not rush to where they want to go. Being in a hurry increases the chances of
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1 ISSN 2229-5518 Some Aspects of Performance Improvement of Pelton Wheel Turbine with Reengineered Blade and Auxiliary Attachments Suraj Yadav Abstract- Pelton wheel is the only hydraulic turbine of the impulse type in common use‚ is named after an American engineer Laste r A Pelton‚ who contributed much to its development around the year 1880. Therefore this machine is known as Pelton turbine or Pelton wheel. It is an efficient machine particularly suited to high heads‚ many modifications
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Introduction In a Grignard reaction‚ a Grignard reagent (R–MgX) adds to the carbonyl group in an aldehyde or ketone to form an alcohol (Figure 1). The reaction of a Grignard reagent with formaldehyde can be to synthesize a primary alcohol‚ with any other aldehyde can be used to synthesize a secondary alcohol‚ while the reaction with ketone is useful in the synthesis of a tertiary alcohol. Figure 1. General reaction mechanism of a Grignard Reaction The preparation of the Grignard reagent involves
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Introduction – Lab Report What is a Chemical Reaction? A chemical reaction is a change in matter that produces one or more new substances. A chemical change or reaction occurs when bonds are broken and new ones are formed. The formation and dissolution of these bonds are dependent upon environment changes. Even without the usage of microscopes‚ chemical reactions are usually apparent to the naked eye. The two main kinds of changes that one can observe are the formation of new substances and changes
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catalyst free reaction by stirring reaction mixture of a and b in ethanol at room temperature. Additionally‚ several reactions were performed using various catalysts in different reaction conditions and results are summarized in Table 1. The catalyst free reaction fails to produce selective benzimidazole and conversion of reactants in long reaction time and obtained only 21 % conversion with 13 % selective yield of c after 48 h reaction time (Table I‚ Entry 1). Later on‚ the same reaction performed at
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Chemical Reactions Lab Report Introduction: Chemical reactions is a process that involves rearrangement of the molecular or ionic structure of a substance. There are different types of reaction such synthesis‚ decomposition‚ single replacement‚ double replacement‚ and combustion. Synthesis is where two or more reactants combine to create a product. For Decomposition‚ it is the opposite where a product breaks down into reactants. In Single Replacement‚ reactants switches an element with another element
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Writing Practical Reports Aim: To observe what happens during and after a chemical reaction. Equipment: Concentrated nitric acid in a glass dropping bottle Small pieces of Copper 250ml Beaker 2 M Lead nitrate in a dropping bottle 2 M Potassium iodide in a dropping bottle 2 M Copper sulfate in a dropping bottle 2 M Sodium hydroxide in a dropping bottle 2 M Hydrochloric acid in a dropping bottle 4 Pyrex test tubes Test tube rack Spatula Bunsen burner‚ gauze
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Institutional theory looks at organizations as elements of society and seeks to understand the influence of the social environment in shaping their development‚ through the pressures to conform to socially accepted organizational values and practices (Meyer and Rowan‚ 1977 and DiMaggio and Powell‚ 1983). By striving to establish social legitimacy‚ organizations are susceptible to environmental pressures leading to isomorphic tendencies. Nevertheless‚ firms may also respond and react to such pressures
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