Experimental Synthesis of Aspirin and Melting Point Purity Analysis Donald Yeargin CH 222‚ Section 24221 Department of Chemistry Portland Community College Portland‚ OR Abstract The various methods available to synthesize aspirin lead to the need to examine and evaluate production efficiency and purity. The purpose of our experiment was to synthesize acetyl salicylic acid (aspirin) and then determine the relative purity of the synthesized sample by observing the melting point temperature
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University of Santo Tomas Faculty of Pharmacy EFFECT OF pH ON ENZYMATIC ACTIVITY Abogado‚ Paula Isabel‚ Agustin‚ Nikka Rebecca‚ Andres‚ Mary Anne B.‚ *Austria‚ Beatrice April‚ Baybay‚ Jan Miko Aaron 2BMT I. ABSTRACT pH greatly affects the activity of enzymes. There is a point or pH level where maximum activity of enzyme can be achieved‚ this is called optimum pH. Invertase was extracted from yeast and used as the detanured enzymes. Two sets of six test tubes were each added with different
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Simultaneous Determination of Several Thermodynamic Quantities: K‚ ∆G°‚ ∆H°‚ and ∆S° Submitted by: Feldan P. Villarta Submitted to: Mrs. Gloria Jesusa D. Baltazar Chemistry 73 (Laboratory) August 11‚ 2014 Simultaneous Determination of Several Thermodynamic Quantities: K‚ ∆G°‚ ∆H°‚ and ∆S° Feldan P. Villarta I. INTRODUCTION The solubility product constant‚ Ksp‚ is the equilibrium constant for a solid substance dissolving in an aqueous solution. It represents
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Organic Chemistry Laboratory – CH 200L (2012 – 2013) 2B-Ph Group 3 Experiment 1 Simple Distillation of Vodka Ancell Julienn C. Cruz Department of Pharmacy‚ Faculty of Pharmacy University of Santo Tomas‚ Espana Street‚ Manila 1008 Date Submitted: July 5‚ 2012 Abstract Distillation is a process of converting a liquid to a vapor‚ and then‚ collecting the distillate in another container. There are four distillation methods which are fractional distillation‚ simple distillation‚ vacuum
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Grignard Synthesis of Tirphenylmethanol David Szuminsky Organic Chemistry Lab II Shaopeng Zhang Monday 1PM 2/10/14 & 2/24/14 - Abstract A sample of triphenylmethanol was prepared using Grignard synthesis techniques. Reflux was used in order to speed up the reaction and the final product was purified using recrystallization methods. The percent recovery and percent yield were 80.46% and 47.526%‚ respectively. A melting point range of 85-87oC was obtained from
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"A business report is an orderly‚ unbiased communication of factual information that serves some business purpose." Reports provide feedback to the manager on various aspects of organization. The information is needed for reviewing and evaluating progress‚ planning for future course of action and taking decisions. Reports can be written in direct and indirect method/approach: The Direct approach saves time and makes the report easier to understand by giving readers the main idea first. This
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Synthesis of Banana Flavor via Fischer Esterification Patricia Faye R. Agnila‚ Joan Karla M. Alvaran*‚ Micaela Isabel N. Arellano‚ and Denzel Nicho T. Armendares Department of Biological Science‚ College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract This experiment is conducted to exhibit the synthesis of banana
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Department of Chemistry‚ NUS Checklist for Formal Laboratory Reports Contents Use the same as the title of the experiment. Title Write name (same as the name on the class list)‚ email‚ group‚ fumehood number and date clearly at the top of the front page. Summarize the laboratory report. Include a general description of the – scientific problem Abstract – experimental approach (in a general way) – key findings (including important numerical results) – conclusions Brief. Do not exceed the word
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Title Page Density Formal Lab Report Name Professors Name Date Purpose/Objective: Determine density of a product for a plastic manufacturing facility. Provide quality control by making sure the physical properties are within design specifications. Density is defined as the ratio of an object’s mass to its volume‚ measured by dividing mass by volume (density = mass/volume). This was accomplished using two different experimental methods‚ displacement and floatation. The theory is that
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They then examined these samples through the SEM‚ XRD‚ and TGA to learn more about the properties and differences. The SnSp (powdered) species came from the SnSg (granular) synthesis during solvent exchange and the CO2 supercritical drying process. They found that the PAN hybrid was very much more mechanically stable than pure chalcogel‚ even though the as-made chalcogels adsorbed iodine more quickly‚ and more effectively. The
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