Chapter I Introduction A. Background of Study | Termite is a common name for numerous species of social insects that can damage wooden structures such as furniture or houses. Of about 2000 known species‚ most are distributed in tropical countries and some inhabit the temperate regions of North and South America; two have become established in southern Europe. Termites are known also as white ants‚ a misnomer based on superficial similarities in the appearance and habits of these
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Introduction: This experiment involves an extraction of a natural product using the techniques of steam distillation. The principle component of oil of cloves is an aromatic compound‚ which is identified by thin layer chromatography (TLC). Eugenol is widely used in dentistry‚ due to its analgesic‚ antiseptic balsamic qualities. It is ideal for curative for pulp hyperemia (the soft‚ sensitive substance underneath the enamel and dentine of a tooth) and pulp its. In dentistry eugenol is also used to
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Figure 1: Rf Values. Figure 2: IMFs In Each Structure. 3. What is the difference between a’smart’ and a’smart’? Write a paragraph that describes how each compound is attracted to each element and silica. The first eluent (A)‚ 9-fluorenone greatest IMFs are dipole-dipoles‚ although silica allows for short dipole-dipole interactions‚ which is possible because of its polar regions. This relationship is exemplified by 9-fluorenone?s high Rf values‚ and a strong affinity towards the stationary.
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EFFECT OF GARCINIA COLA ON OVULATION A TERM PAPER ON COMMUNITY NUTRITION PRESENTED TO DEPARTMENT OF COMMUNITY HEALTH BY AJITE KAYODE .O CLP/ 08/09/EX/MPH/2757 TABLE OF CONTENT 1. ABSTRACT 2. INTRODUCTION 3. LITERATURE REVIEW 4. CONCLUSION
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product results in a racemic mixture of benzoin. If both carbonyl groups are reduced‚ the product results in a meso-hydrobenzion or a racemic mixture of hydrobenzion. The goal of the experiment is for the student to reduce benzil and use melting point‚ TLC‚ and IR to determine the stereochemistry of the resulting product. Figure 2: Benzil reduction mechanism: Key experimental details‚ observations and results: The initial reaction solution including the 1.011g of benzil and 10ml of 95% ethanol
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The synthesis of meso-1‚2-dibromo-1‚2-diphenylethane was successful as the final product of the experiment had the same physical properties of the theoretical properties‚ which were determined by TLC and melting point. The synthesis of diphenylacetylene was also successful‚ as TLC and the melting point both proved its identity‚ however the UV-vis analysis went awry due to a procedural mistake‚ making the analysis unusable. The most important learning outcome of Experiment 6 was understanding
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made from plants‚ which means it contains many of the health benefits of dark vegetables. These benefits are from flavonoids‚ which act as antioxidants. Antioxidants protect the body from aging caused by free radicals‚ which can cause damage that leads to heart disease. Dark chocolate contains a large number of antioxidants (nearly 8 times the number found in strawberries). Flavonoids also help relax blood pressure through the production of nitric oxide‚ and balance certain hormones in the body.
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Chemistry 207 (Lab # 1) 9/11/12 Experiment #1: Cooperative Identification of an Organic Solid A. What needs to be done: In this lab‚ one will identify the identity of a colorless organic solid by experimentally finding the physical properties of the solid. Such properties include melting point‚ mixed melting point‚ and IR spectrum. With these properties‚ one will be able to compare their results of the organic solid to see if any other classmates have the same unknown sample. B. Timeline:
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Final Year Project Progress Report Title: Fat Content Analysis and Characterization of Food Class and Group No. : AS114103/2A1 Student Names : Chan Hoi Ching (120586347) : Chan Wai Yi (120464356) : Cheung Kit Cheung(120552694) : Lam Chi Ching (120224281) : Lam Pik Shan (120181829)
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Identification of an Adulterated Herb The purpose of this lab is to analyze the volatile oils of some herbs through TLC testing and then identify the adulterant in a sample. Unfortunately‚ we ran out of time to complete the lab; however‚ we were able to get through most of it‚ and were only missing the adulterant. The first step to identify our unknown samples was to create TLC plates that should results with each known compound and 95% hexane: 5% ethyl acetate‚ 90% hexane: 10% ethyl acetate‚
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