Separating Acids and Neutral Compounds by Solvent Extraction Introduction The purpose of this experiment was to use solvent extraction techniques in order to separate a mixture consisting of a carboxylic acid (p-toulic acid)‚ a phenol (p-tert-butylphenol)‚ and a neutral compound (acetanilide). Extraction is the process of selectively dissolving one or more of the compounds of a mixture into an appropriate solvent‚ the solution that contains these dissolved compounds is called an extract (Manion
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Psychology ERA - Animal Welfare Experiment and Prac Report. ERA - Animal Welfare Experiment and Prac Report. By *&^% ^%$#@ Aim: The aim of this survey experiment is to establish whether an individuals beliefs about an issue are demonstrated consistantly through their responses to the five questions asked about a particular issue‚ or whether cognitive dissonance is present. In addition to that‚ the results of each exclusive group can be compared to eachother‚ to see whether it affects their
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the nerve that cause disorders. The objective of this study was to trigger a compound nerve action potentials (CAPs) and examine the effects of a stimulus voltage on a nerve and inspect their threshold‚ refractory period and also their velocity. Compound nerve action potentials (CAPs) are summed action potential of one nerve‚ one nerve consists of many neurons. We used the sciatic Lithobates pipiens nerve in this experiment‚ the sciatic nerve is long nerve‚ it extends from the buttocks to the legs
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on the subject lines. Multiple Choice: True/False (5-2) Compounding 1. F J Answer: aEASY Starting to invest early for retirement increases the benefits of compound interest. a. True b. False (5-2) Compounding 2. F J Answer: bEASY Starting to invest early for retirement reduces the benefits of compound interest. a. True b. False (5-2) Compounding 3. F J Answer: aEASY A time line is meaningful even if all cash flows do not occur annually. a. True b. False
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Volatile Organic Compounds (VOCs) have become the greatest challenges to the preservation of the environment today. This group of chemicals is used in almost every sphere of life from industries‚ government institutions and domestically by both an ignorant and knowledgeable public. This paper aims to put to light examples of such compounds‚ look at the effect on the general populace and the environment and outline possible remedies to negative impacts. At the same time‚ it is important to look at
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Abstract:Conjugation is a natural occurring process that involves the transfer of DNA from one cell into another through a physical connection between the cells. In the following experiment‚ two strains of Escherichia coli bacterial cells (donor F’lac+strs and recipient F-lac-strr) underwent conjugation to produce a transconjugant strain (F’lac+strr). MAC plates and streptomycin were utilized to determine if conjugation had occurred. When plated‚ the donor colonies appeared red and the recipient
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Silver Mirror Experiment Background: This experiment was first conducted by Bernhard Tollens‚ it is used to determine whether a carbonyl containing compound is an aldehyde or a ketone. An aldehyde is a compound containing a formyl group (CHO).The experiment involves diamminesilver complex and a chemical reagent (also known as “Tollens’ reagent”) which in this case is glucose. In a successful experiment a reflective silver metal should precipitate‚ with characteristics identical to that of a mirror’
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CHEM 163: SYNTHESIS AND ANALYSIS OF A COPPER(II) COORDINATION COMPOUND INTRODUCTION In this multi-week experiment‚ you will synthesize a compound and then analyze it to determine its empirical formula. The substance you will prepare is a vividly colored coordination compound of copper. Based on the reagents used in the synthesis procedure‚ you can assume that the final compound contains copper(II)‚ ammonia‚ sulfate‚ and water. In your
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Identification of Unknown Organic Compound by Melting Point (M.P)‚ Boiling Point (B.P) and Infrared Spectroscopy Methods and Background The main objective of this lab is to identify the given unknown organic compounds with various methods. Identification of an unknown compound is important to perform through the process of melting point (M.P)‚ boiling point (B.P) and Infrared spectroscopy (I.R). Index of Hydrogen deficiency (IHD) and elemental analysis makes an experiment more efficient in determination
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The following three pieces were all found in the book A World of Art by Henry M. Sayre. The three sculptures‚ Puppy‚ Cloud Gate‚ and Great Serpent Mound‚ where all selected because of their relevance to nature. Both Puppy and The Great Serpent Mound are almost literally made of natural material‚ particularly vegetation. On the other hand‚ Cloud Gate is made of stainless steal‚ but yet the steal reflects it’s surrounding. Particularly Could Gate reflects the sky above it‚ and thus incorporates nature
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