Gerome B. Vallejos*‚ Ellis Mika C. Trino‚ Jahn Camille B. Valdez‚ Ariza Yamashita Department of Biological Sciences‚ College of Science Group 11 Corresponding author: gerome_911@yahoo.com Abstract The purpose of this experiment was to synthesize isopentyl acetate via Fischer esterification reaction between acetic anhydride and isoamyl alcohol‚ using concentrated sulfuric acid as a catalyst. This reaction is characterized by the combining of an alcohol and an acid (with an acid catalyst) to yield and ester
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esters help amplify the sensory effect of esters. Isopentyl acetate is made from the direct esterification of acetic acid and isopentyl alcohol. The direct esterification of acetic acid and isopentyl alcohol is an equilibrium reaction that shifts the product to the side by using the excess of one of the starting reagents. Acetic acid usually used in excess because it is easier to remove from the reaction. The excess acetic acid and the remaining isopentyl alcohol are removed through extraction with water
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Purpose of this experiment is to synthesis Banana oil by mixture of the isopentyl alcohol and acetic acid . Banana oil smells like fruit mostly it smells like banana. This reasons that this compound uses in different perfume products as well as the gums for the flavor. The reaction that takes place in this experiment is a esterification. In this experiment‚ the carboxyl group of the acetic acid joins with the hydroxyl group of the isopently alcohol‚ catalyzed by the presence of sulfuric acid
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People attend college or university for many different reasons (for example‚ new experiences‚ career preparation‚ and increased knowledge). Why do you think people attend college or university? Use specific reasons and examples to support your answer. In the past‚ the chances of going to college or university are difficult. This is due to the financial problem and also the amount of college and university that built up in that time. But in this new millennium‚ all people are having an opportunity
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Section Introduction In the banana oil lab we began with isopentyl alcohol + acetic acid isopentyl acetate + Water. We needed for this experiment a hot plate‚ clamps‚ pipette‚ 5mL vial‚ caps‚ hoses and a thermometer. Upon starting‚ our group set up an open system experiment that allowed gases to be released to avoid pressure build up. We mixed together to molecules‚ 1.0mL of isopentyl alcohol‚ 1.5mL of acetic acid and added three drops of sulphuric acid. The acetic acid
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Fischer Esterification is when an carboxylic acid and an alcohol reacts to produce an ester‚ catalyzed by a strong acid to protonate the -OH of the carboxylic acid‚ so it leave as water (Ketcha‚ 58). For Fischer Esterification to occur‚ the reaction must be heated up‚ without boiling away‚ for a prolong amount of time by refluxing the mixture (Ketcha‚ 57). Refluxing is the process in which the boiled solution’s vapors are condense back to a liquid and return to the boiled solution (Ketcha‚ 60). The
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INTRODUCTION: Carboxylic acids are organic acids characterized by the presence of a carboxyl group‚ -COOH. This acid acts as a weak acid‚ which can react with a strong base. Carboxylic acids form hydrogen bonds with many water molecules and are more soluble with one to four carbon atoms. Also‚ it may have an R group that consist of hydrogen or an alkyl group that changes its water solubility. Carboxylic acids with low molecular weight have odor at room temperature and higher molecular weight
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the molecule This project will count as one lab grade. A sample grade sheet is on the back. Some possible molecules: Caffeine Theobromine Acetylsalicylic Acid (aspirin) Acetaminophen Ibuprofen Naproxen (Aleve) DEET Octyl acetate Isopentyl acetate Ethyl butyrate Methyl butyrate Methyl salicylate Isobutyl formate Citral Cinnamon aldehyde Vanillin Testosterone Estradiol Cholesterol Dopamine Serotonin Norepinephrine Pseudophedrine Methamphetamine AZT Nonoxynol-9 Nicotine
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Montessori way of teaching mathematic is truly a wonderful and interesting way to learn the concepts of mathematics. Mathematic is very important for our daily life. Mathematic relates to numbers and numbers are around us all the time‚ so it is very important to introduce numbers to the child at very early age‚ but before you introduce numbers it is important to lay a strong foundation of practical life activities and sensorial training to the child. Practical life activities allows the child to
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alcohol in the presence of an acid catalyst‚ which is used to expedite the reaction. In this experiment the process was used to synthesis isopentyl alcohol‚ which was the limiting reagent‚ with sulfuric acid and excess of acetic acid. Had equal amounts of acetic acid and isopenthyl alcohol been used‚ approximately only two thirds of each would be converted to acetate. This mixture was heated under reflux for one hour to ensure that the reaction went to completion. Chemical reaction
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