Synthesis of DEET Abstract: For this experiment m-toluic acid was reacted with thionyl chloride resulting in a nucleophilic acyl substitution which could then be used to create DEET with excess diethyl amine (Figure 1). This was done by adding diethyl amine drop wise using a seperatory funnel which resulted in a gas formation which was controlled with a condenser attached to a gas vacuum. The resulting mixture was then washed to remove excess acids and bases and rotovapped. DEET was synthesized
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Experiment 23: Synthesis of an Alkene April 5‚ 2013 Purpose: Results and Discussion The weight of our n-Butyl Bromide sample (actual yield) was 0.09g. The percent yield was found to be 4.38%. Only 0.09g of the theoretical 2.055g yield was obtained. The boiling point was 104° C‚ which is higher than the literature value of 101° C. This is due to the sample being somewhat impure‚ as impurities tend to increase boiling point. When IR spectroscopy was performed‚ there were no OH stretches
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Also‚ in the end of fall‚ almost all leaves from the tree are withering. Fall is one of my favorite seasons‚ the weather and the colour of nature are two main reasons. Warm colours during fall are the best weapon to combat the freezing breeze. Thematic/Inspiration for the Colour Story When
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replication in a eukaryotic cell is more difficult. DNA of an eukaryotic cell is in chromatin form to fit into the small nucleus for the replication to occur‚ first the DNA should open. This is because it is harder for eukaryotes to carry out DNA synthesis. Replication of DNA in a prokaryote is different from a eukaryote. In a prokaryote they have a single origin where the replication process starts. Also eukaryotes synthesize the same time they are being transcribed‚ and ribosomes will be active
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The story of “The Gingerbread” man is a classic fairy tale told of a little animated gingerbread man‚ townspeople‚ and a “big bad wolf”.The mains themes that are very evident throughout the narrative are the ideas of desire‚ trust‚ and gullibility. In many instances through the story we see the gingerbread man put his trust in the wrong people‚ and eventually this ends up hurting him when wolf inevitably end up eating him‚ while trying to cross the river. This is message is very applicable to the
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Synthesis of Cyclohexanol Author: Ahmed Ayyash 06/06/13 Introduction: In this experiment‚ cyclohexanol was prepared from an initial cyclohexene. However‚ this occurred over a number of steps‚ these are out lined below. 1. Cyclohexene + aqueous acid cyclohexyl cation 2. cyclohexyl cation + hydrogen sulphate + water protonated cyclohexanol + cyclohexyl hydrogen sulphate 3. cyclohexyl hydrogen sulphate protonated cyclohexanol + HSO4 4. protonated cyclohexanol + HSO4
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Anthony Felix 10/27/11 Che12ALR Synthesis of Diphenylacetylene Observation of Results: 1‚2-dibromo-1‚2-diphenylethane | 0.204g | Diphenylacetylene | 0.087g | Theoretical yield | 0.107g | Percent yield | 81.3% | Melting point range of diphenylacetylene | 57- 60°C | Average melting point | 58.5°C | Average literature melting point | 60.0°C | Percent error of melting point | 2.5% | Calculations: Theoretical yield: Limiting reagent (LR) x M.W. (LR) x Mole to Mole ratio x M.W. (product)
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The Ancient Egyptian civilization was completely dependent on its geographical features. The Nile River was the Ancient Egyptians lifeline. Egypt became the first unified civilization under one government through the Nile River‚ and it caused Egypt’s farming economy to flourish. Egypt is located in North East Africa. The fertile lands of the Nile Valley attracted Stone Age farmers. People migrated from the Mediterranean area‚ from hills and deserts along the Nile‚ and from other parts of Africa
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Almenny Larchick John’s Crew JAM 7 Growth Synthesis Engine‚ Pitstop‚ Track Time. New words and meanings flow around in my head. This project opens me up to new information I would have never considered. Pushing me to work‚ helping me learn new things. The central idea for my growth see spaces is how I have made growth in my educational understanding this year. This does not include any of my grades but of the knowledge I’ve acquired. I showed growth this year in my mindset vocabulary quiz and
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Synthesis of Isopentyl Acetate Abstract Isopentyl acetate was synthesized via a Fischer Esterification and purified via simple distillation. The yield was determined to be 25%. The identity and purity of the product was confirmed by comparison of the measured ultra-micro boiling point (140°C) to the published value (142°C).1 Chemical Equation Procedure Isopentyl alcohol (0.787 g‚ 1.2 mL‚ 8.93 mmol)‚ acetic acid (1.574 g‚ 1.5 mL‚ 26.20 mmol)‚ and sulfuric acid (0.368
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