really fast and it made you go forward and it kinda hurt. When we got off we had the biggest smile on our faces “that was the best 17 seconds of my life”‚ I said. Then we went to the exit and went to go meet up with my mom and brother; then we got our funnel cakes. I learned that not all roller coasters are scary and that I need to be a lot more
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Extraction of caffeine from Lipton tea leaves Maria Gianna Beatrice L. Cancio*‚ Joe Mari Isabella B. Caringal‚ Rowena A. Chiang‚ Patricia Deanne del Valle Department of Biological Sciences‚ College of Science‚ University of Santo Tomas‚ España‚ Manila‚ Philippines Abstract Caffeine was extracted from Lipton tea leaves by multiple extraction techniques namely solid to liquid extraction and liquid to liquid extraction; the purification by sublimation and melting point determination. Three
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Exp’t 84 Synthesis of Methyl Benzoate by Fisher Esterification from K. L. Williamson‚ Macroscale and Microscale Organic Experiments‚ 2nd Ed. 1994‚ Houghton Mifflin‚ Boston p385 Revised 10/15/03 Prelab Exercise: Give the detailed mechanism for the acid-catalyzed hydrolysis of methyl benzoate. Introduction: The ester group is an important functional group that can be synthesized in a number of different ways. The low-molecular-weight esters have very pleasant odors and indeed are the major components
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Lab 5: Preparation of Synthetic Banana Oil September 20th‚ 2012 Purpose: The main purpose of this experiment was to synthesize banana oil (isopentyl acetate.) Ester are often prepared by the Fischer esterification method‚ which involves heating a carboxylic acid with an alcohol in the presence of an acid catalyst. Theory: Synthesize isopentyl acetate by combining isopentyl alcohol with acetic acid and sulfuric acid and then heating the reaction mixture under reflux for an hour. The alcohol
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assigned carbonyl compound. Appropriate amounts of benzaldehyde‚ benzophenone‚ or methyl benzoate based on the amount of bromobenzene used should be added to a dry beaker along with anhydrous diethyl ether. The mixture was poured into the addition funnel‚ added to round bottom flask drop wise‚ allowed to reflux for an additional 15 minutes‚ and then cooled it to room temperature. Once the reaction mixture was cooled‚ it was poured onto 25g of ice and H2SO4. Diethyl ether was added to completely dissolve
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MIXTURES‚ SOLUTIONS‚ SUSPENSIONS AND COLLOIDS MIXTURES A mixture is a combination made up of two or more different substances which are mixed but are not chemically bonded. There are also types of mixtures such as homogeneous mixtures and heterogeneous mixtures. SOLUTIONS A solution is defined as a homogeneous mixture composed of a solute; a substance dissolved into another substance known as a solvent. They can also be defined as groups of molecules that are mixed up completely in even
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used in the experiment are as follows: benzoic acid‚ sugar‚ denatured alcohol‚ chloroform‚ acetanilide‚ copper sulfate‚ activated charcoal‚ distilled water‚ acetone‚ toluene‚ glutamic acid and glycine. The apparatus used include funnel‚ Erlenmeyer flask‚ separatory funnel‚ beakers‚ evaporating dish‚ water bath‚ graduated cylinder‚ stirring rod‚ watch glass‚ distilling flask‚ thermometer‚ tripod‚ wire gauze‚ burner‚ iron stand‚ burette‚ damps‚ utility damps‚ condenser adapter‚ receiver‚ medicine dropper
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Purpose=The purpose of this lab was to combine reactants‚ which we would pick ourself‚ to make 2 grams of Copper Phosphate and another product. Background: Chemistry is the branch of science that deals with the identification of the substances of which matter is composed. Chemistry has to do with many things we use today. For example‚ fireworks are made by the chemical combining magnesium‚ titanium‚ copper‚ aluminum‚ strontium‚ or other periodical elements. Things also like making plastic‚ jewelry
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alkali. | Materials / Apparatus: * H2SO4 * HCL * HNO3 * Alkali (NaOH) * Stand * Burette * Beaker * Funnel * Bunsen Burner * Crucible * Phenolphyalein Method: 1. Pour the 25 ml of NaOH into a beaker. 2. Drop three drops of phenolphyalein into the beaker. 3. The solution will now turn pink. 4. Through a funnel‚ pour the acid into the burette. 5. Start dripping a few drops one by one into the beaker. 6. The solution will start getting
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Coal power plants are one of the most polluting. The gases can be carried hundreds of kilometres in the atmosphere before they are converted to acids and deposited. In the past‚ factories had short funnels to let out smoke‚ but this caused many problems locally; thus‚ factories now have taller smoke funnels. However‚ dispersal from these taller stacks causes pollutants to be carried farther‚ causing widespread ecological damage. Acid rain has been shown to have adverse impacts on forests‚ freshwaters
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