violet color when dyed. The experiment was first heated under reflux to produce the necessary Grignard reagent as a grey liquid. It was then reacted with diethyl carbonate and hydrochloric acid to produce crystal violet. The resulting chemical was very absorbent to polypropylene and bleached cotton fabrics. Introduction: In this experiment a Grignard reaction is performed with a Grignard reagent acting as the nucleophile1. Grignard reactions are very useful for the substitution of compounds containing
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As Lucas places his key into his old‚ rusted‚ ford truck‚ he slowly turns the key to the right while breathing a much needed sigh of relief. His junior year of high school has finally ended and all he had left to do was one exam two weeks from now. He could now take the 15 minute drive‚ over the winding‚ hilly country roads of Skylar County‚ to his father’s house. Lucas lived in the small town of Odessa‚ New York‚ a town mostly populated by farmers and rednecks. Although the small hill top town
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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 reagents are alkyl magnesium halides‚ R-Mg-X were first introduced in 1900. These reagents are usually prepared by reacting one atom with one molecule
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Organic chemistry studies carbon compounds‚ but a few carbon compounds such as carbon monoxide‚ carbon dioxide‚ metal carbonates‚ and carbon disulphide traditionally come under the umbrella of inorganic chemistry. INTRODUCTORY 1. Give the following for the compound propane C3H8: (a) Full structural formula (b) Skeletal formula 2. Draw all the possible isomers of hexane C6H14 and give the name of each. 3. Draw the structural formulae for each of the following alkanes: (a) 2‚2- dimethylbutane
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bromination procedures. In order to create the alkyl halides‚ which are able to undergo chemical transformations more readily than the carbon-carbon double bond‚ onto the trans-stilbene the addition process of halogenation in needed. The typical reagents that are used‚ such as elemental bromine and liquid bromine‚ are dangerous and highly corrosive‚ so this experiment used an alternative method of bromination.
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and Lucas are complete opposites. Amy is shown as an intelligent creative girl whereas Lucas is portrayed as a stereotypical childish brother. He is very rough‚ inconsiderate and foolish. Firstly‚ Lucas is rough. Instead of using his words and being polite‚ he resorts to the use of physical violence to accomplish his goals. “Then‚ WHAP! Lucas leans over the back of my chair‚ rips the book from my hands..”(Ellis 4). This situation is a great example to demonstrate Lucas’ tendencies. If Lucas was
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It was just as sweaty and uncomfortable as Lucas remembered. They waited for a long time outside in the hot summer sun‚ until eventually they piled into the humid gym. Everyone’s faces were all red and dripping in sweat‚ it was almost as if the school wanted them to look their absolute worse for their pictures. Either that‚ or the school just really didn’t care. After getting their pictures taken‚ everyone was handed their photo IDS. With that out of the way‚ the group of friends were made their
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Investigation 3 Determine the Limiting Reagent Chemistry Investigation 3 Limiting Reagents Aim: To determine the limiting reagent in a reaction. Hypothesis: if the number of moles of the solutions added together equals the stoichiometry ratio in the balanced equation‚ then we would not expect a limiting reagent in the reaction. Independent variable: The number of moles of the reactants Dependent Variable: The limiting reagent Constant Variable: The volume of reactants added Equipment:
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reaction of the phenylmagnesium bromide with the carbonyl compound. However‚ before any of this could be done‚ the refluxing apparatus for the Grignard reaction was to be flame dried until no moisture remained inside because any water would cause the reagent to decompose and an alkane to form. The reaction would subsequently fail. Drierite was placed inside a plastic drying tube as a drying agent‚ absorbing all the moisture from the solvents that would later be refluxing in the apparatus and coming out
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with the Bluret reagent should come out positive for being a protein. The pepsin in the Bluret reagent should be positive and should be a protein. The test for sugar in the Bluret reagent should be negative and I don’t think it is a protein. The test with the distilled water with the Bluret reagent should be negative and is not a protein. In the second experiment to test for glucose with the Benedict reagent sugar should be positive for glucose. Starch mixed with the Benedict reagent is probably
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