Lab Report Synthesis and Characterization of Aspirin (Acetylsalicylic Acid) The Synthesis and Characterization of Aspirin (Acetylsalicylic Acid). Summary: In this experiment‚ we produced 4.21 g of acetylsalicylic acid. Our theoretical yield was calculated to be 5.22 g. Therefore our % yield was determined to be 80.6%. The experimental boiling point range of acetylsalicylic acid was found to be 130-132° C. The true melting point of acetylsalicylic acid is 135° C‚ therefore our percent
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Name Period Date The Synthesis of Aspirin Background Pharmaceutical research labs perform chemical reactions between organic molecules that contain mostly carbon. Since the atoms in organic molecules tend to be nonmetals‚ then the bonds that hold them together are covalent bonds. Only a few elements on the periodic table are nonmetals: C‚ N‚ O‚ S‚ Cl‚ and F. This small number of elements can be bonded together in different quantities‚ bonding types (single‚ double‚ triple bonds)‚ and structural
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release of energy. Anabolism is constructive metabolism. Typically‚ in anabolism‚ small precursor molecules are assembled into larger organic molecules. This always requires the input of energy. Anabolism is the synthesis of complex molecules from precursors. This includes synthesis of proteins‚ carbohydrates‚ nucleic acids and lipids‚ usually from their building block monomers. Catabolism is the breakdown of complex molecules into smaller precursors from which they are synthesized. It is a reversed
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Synthesis Argument Do you want to have everything decided for you? Does that make you feel safe and comfortable? How about confused and concerned? Do you see too many laws that restrict your freedom? Government protects people from threats and is not to unnecessarily legislate that restricts freedom and governs morality but to leave that to the realm of individual responsibility. Government is defined by the Webster Dictionary as "the system by which a state or community is governed." In America
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Alum Synthesis: The Chemical Process of Recycling Aluminum Introduction By recycling aluminum cans‚ the costs and energy savings are dramatically more resourceful and efficient than producing aluminum from what it is naturally found in‚ bauxite ore. The process of recycling aluminum to produce potassium aluminum sulfate‚ a common alum‚ will be done through a serious of chemical reactions. Through this reaction‚ percent yield will be determined. Materials and Methods The mass of a 250 mL
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|Biology | |2013 Subject Outline | |Stage 1 and Stage 2 | contents INTRODUCTION 1 Purposes of the SACE 1 Subject Description 1 Capabilities 2 Literacy in Biology
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to take the most advanced courses possible because they will benefit me in the future. By enrolling in AP‚ IB‚ and honors level classes‚ I have made myself a better student as well as a smarter individual. Every year I set high standards for myself and I work to reach my goals because I believe it will lead to success. I set my sights on short term goals such as achieving a four or higher on the AP test as well as long term goals including getting into a good college and finding myself an enjoyable
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amongst our group members was: an increase in temperature will damage the permeability of the plasma membrane. Also‚ the heat will break away the permeability. If the pH solution is 7 or greater there will be no change but the lower the pH the more proteins in the membrane deteriorate. This was believed because its very common that with heat applied to something‚ the ’object’ expands‚ this is seen with metals. Due to this‚ we assumed that the same would happen to animal and plant cells and the cell
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CHEMISTRY 101.1 Intermediate Chemistry Laboratory I Institute of Chemistry University of the Philippines‚ Diliman I. Synthesis of Salicylic Acid Purpose: Part I of the experiment illustrates the base hydrolysis of an ester‚ methyl salicylate‚ to form salicylic acid through nucleophilic acyl substitution. Procedure: Dissolve 12 g NaOH in 70 mL water in a 150 mL round bottom flask. Add 5.0 mL methyl salicylate and reflux the reaction mixture at its boiling point for 15 minutes using a stirrer
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In modern day‚ man does not truly think about how much the earth means to life. On the contrary‚ humans aspire to cease Mother Nature’s beauty with the replacement of modern day cities made up of synthetic nature. Since the dawn of the twentieth century‚ a major theme in the American Arts has been the protest against man’s destruction of the natural world. With this in mind‚ as very well argued in Chief Seattle’s article “Respect”‚ humans fail to be conscious of the physical and sentimental value
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