mosis Did you observe any pressure changes during this experiment? If so‚ in which beaker(s)‚ and with which membranes? In the L beaker with the 20 MWCO Membrane‚ the pressure went up. Why? Because no diffusion took place. Did the Na?/Cl? diffuse from the left beaker to the right beaker? If so‚ with which membrane(s)? Yes‚ 50‚ 100‚ and 200 MWCO Why? Because diffusion took place. Explain the relationship between solute concentration and osmotic pressure. They are directly proportional‚ if the
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Synthesis of Aspirin and Oil of Wintergreen Janelle Alyssa P. Prudente De La Salle University-Dasmariñas Dasmariñas City‚ Cavite‚ Philippines ABSTRACT In this experiment‚ acetylsalicylic acid commonly known as aspirin and methyl salicylate‚ commonly known as oil of wintergreen‚ was synthesized from salicylic acid. This study will show that it is possible to show two very different organic compounds from the same common starting material. For the synthesis of aspirin‚ salicylic acid
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The goals of this experiment are to determine if the products derived from amide synthesis and Williamson Ether Synthesis are identical‚ and if one of the synthetic routes is more advantageous than the other. In Part 1‚ an attempt to synthesize acteophenetidin crystals by amide synthesis was made. We began by removing the colored impurities from the p-Phenetidine (reddish-brown) by placing 2g of the sample in 38 mL of hydrochloric acid and heating the solution to boiling point. Upon reaching just
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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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passport data in export of important plant genetic reserve and also resolving IPR conflicts. In this report DNA fingerprinting patterns of two medicinally important plants‚ widely known for their potential therapeutic value viz. Digitalis purpurea L. (Scrophulariaceae) and Zanthoxylum acanthopodium DC. (Rutaceae) have been presented. Of the various methods developed for establishing genotype species markers‚ 1. Amplified Fragment Length Polymorphism (AFLP) analysis of genomes that‚ being done
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Abstract: In this experiment‚ the methyl nitrobenzoate was prepared from methyl benzoate‚ concentrated HNO3‚ and concentrated H2SO4 via an electrophilic aromatic substitution reaction. The HNO3 and H2SO4 were combined to form a nitrating solution‚ which was mixed with a mixture of methyl benzoate and H2SO4. Percent yield for the final product was calculated followed by recrystallization and melting point was measured. Introduction: Nitration of Methyl Benzoate is one of the examples of
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LIDE Learning Center‚ Inc. 6539 Isabel‚ Leyte Synthesis of Aspirin An Investigatory Project Presented to: Edmundo A. Quiñones Chemistry Teacher In Partial Fulfillment of the Requirements In Science and Technology III (Chemistry) Presented by: Kenneth Ivan P. Durano Cyrill Val G. Lozano March 6‚ 2010 APPROVAL SHEET This investigatory project entitled “The Synthesis of Aspirin” requirement for Science and Technology III (Chemistry) has
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Pick n Pay operates as a successful Public company ‚ people: the aim for CSR programmes is to enable South Africans to provide for themselves‚ improve their lives and to help the community. Pick n Pays mission in CSR is to enhance and develop new skills and to support projects that helps and supports entrepreneurship and employment opportunities. Pick n Pays "key Objectives" for CSR is "to make a meaningful and measurable contribution in the areas that we operate. To develop open and transparent
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Chemical Control and Salinity Tolerance of Invasive Species Acacia Nilotica (L.) Willd ex Del. in Puttalam Area ABSTRACT Acacia nilotica (L.) Willd ex Del. is an invasive species currently spreading in Puttalam area. It prefers to grow in arid climates with alkaline soil profile. It is becoming a troublesome weed in this area and therefore‚ the present study was conducted with the objectives of controlling the species by glyphosate application and find out salinity tolerance range
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Experiment 13: Synthesis of 1-Bromobutane An SN2 Reaction Experiment #13: Synthesis of 1-Bromobutane an SN2 Reaction Introduction: In order to synthesize 1-Bromobutane an alkyl halide must be present to undergo a nucleophilic substitution reaction of an alcohol. Since 1-butanol is a primary substrate it will undergo an SN2 reaction with sodium bromide in order to convert the alcohol group to water which is a better leaving group and will in the end produce 1-bromobutane. Experimentally
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