ORGANIC CHEMISTRY LAB 2: Separation of Organic Liquid Mixtures Introduction: In this experiment‚ a mixture of two compounds‚ cyclohexane and toluene‚ was separated into fractions by the techniques of simple and fractional distillation. The individual fractions that were gathered from the distillation were analyzed using gas chromatography (GC) and used to compare the efficiencies of the two different distillation techniques. The ultimate goal of this experiment was to determine whether simple
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of the Lap-Band System II. How the Lap-Band system works And who is it for ? III. Risks and advantages of the Lap-Band IV. Costs of the Lap-Band V. Lap-Band System vs. Gastric Bypass Bibliography I choose to do my research on the Lab-Band system. It is the new weight loss surgery that is taking over. The process makes losing the weight a slow process and very minimally invasive. Hospital stays are shorter and the recovery process is faster. History of the Lap-Band System
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Separation Of a Sample Mixture By Liquid-Liquid Extraction Reading assignment: Techniques in Organic Chemistry 2nd ed pages 75-99. 3rd ed pages 113-140. Topics and Techniques i) identification of solvent layers of two immiscible solvents ii) partioning of a compound between two immiscible solvents and determination of KD iii) liquid-liquid extraction with aqueous acids and bases with organic solvents. iv) use of drying agents Introduction Liquid-liquid extraction is a method used for the
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Literary Analysis of "Mirror" by Sylvia Plath In her poem‚ “Mirror‚ ” Sylvia Plath uses the mirror as a symbol of reflecting truth to further prove the theme that lies can distort one’s true sense of identity. Plath begins the poem by describing how truthful the mirror is. The mirror is something that has no opinion‚ but acts as a painting of the truth from which opinions of the world are formed. The mirror can’t be cruel but only truthful‚ and has a “four cornered
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Experiment 3 Liquid-Liquid Extraction Discussion The success of extracting each compound out of the solution can be seen in the IR graphs for each substance. For ethyl 4-aminobenzoate‚ the N-H‚ C=O and C-O are distinguishable in their proper wavenumber positions. The amino N-H stretch was found between 3224 cm-1 and 3423 cm-1. The C=O was found at 1681 cm-1 and the C-O was at 1280 cm-1. The IR for benzoic acid also displays its significant bonds‚ O-H and C=O. The O-H was between 2566 and
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Part A: Diffusion on a liquid in a liquid. I did an experiment with three different glasses of tap water from the faucet. All three cups measured the same which happened to be 13 cm from the top of the cup to the bottom of the cup. I let the water settle‚ and sit for about an hour so the temperature was the same for all three cups. I then placed one drop of food coloring into the first glass and waited for the coloring to reach the bottom. I calculated 93 seconds. I then went to the second glass
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The Endocrine System Laszlo Vass‚ Ed.D. Version 42-0023-01-01 Purpose What is the purpose of this exercise? Are there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. The purpose of this exercise is to point out the major endocrine structures and being able to identify them and understand their functions
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will give a life changing personal testimony of what I experienced with the lap band surgery with this essay. In the conclusion there are a some helpful tips. Weight Loss vs. Weight Loss Surgery All most everyone have an issue with weight loss and weight gain. This essay will compare and contrast natural weights loss and weight loss surgery. I will give a life changing personal testimony of what I experienced with the lap band surgery with this essay. Throughout this essay there are some tips on
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FE 106 GENERAL CHEMISTRY EXPERIMENT-1 DENSITY OF LIQUIDS PREPARED BY BURAK COBAN PURPOSE: In this experiment we will learn how can we find the density of liquids and liquids of density how change effect of temperature‚ pressure‚ mass‚ volume and concentration. For this reason we will take NaCI solutions with different concentrations and we will measure their densities‚ so we will find out the effects of concentration on density of solutions. THEORY:
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Carly Beardshear Mr. Volle September 6‚ 2010 2nd hour Lab Report I. Purpose The purpose of this lab is to investigate gravitational force on acceleration. II. Materials 1. Spark Paper 2. Spark Time 3. 350 Gram Weight 4. Ticker Tape III. Procedure 1. Measure 1 meter of spark paper. 2. Thread paper through spark timer and set timer to 60 Hz. 3. Tape 350 g weight to spark paper. 4. Turn on spark timer. 5. Drop weight from height of a desk (34 in). 6. Record the data.
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