Classification Tests for Hydrocarbons - 1410 Words

Classification Tests for Hydrocarbons Authors: Goldie Ann Tejada, Allain Joseph S. Templo, Kristinlyn Trajano, Kevin Viray, Quennie Yu Group 10, 2F-PH, Faculty of Pharmacy, University of Santo Tomas ABSTRACT The test compounds undergo different physical and chemical tests to differentiate their intrinsic physical properties and chemical properties. Physical state, color, and odor were noted through simple observation. Miscibility of the test compounds were noted through color change or a warming effect. Flammability was tested by igniting 3-5 drops of the sample in a small evaporating dish. Baeyer’s test and Bromine test were used for tests for active unsaturation. Aromaticity of the compound was determined through nitration.†¦show more content†¦Test for Aromaticity is determined through Nitration. The reagents used are HNO3, H2SO4. A Positive result shows a yellow oily layer. The reaction involves electrophilic substitution reaction were in H2SO4 acts as a catalyst and facilitates the formation of nitronium ion (electrophile) and one hydrogen atom in the benzene ring is substituted by the nitronium ion. Oxidation was tested using 2% KMnO4 and 10% NaOH. A Positive res ult shows a green solution and a brown precipitate. The reaction involves redox reaction and NaOH is used to provide a basic environment. The alkyl group of the aromatic compound is oxidized to a carboxylic acid while Mn7+ is reduced to Mn6+ or Mn4+ depending on the extent of the reaction. Experimental Physical state, color, and odor The physical states of the sample were observed at room temperature. Then the color and odor was noted. Solubility in Concentrated H2SO4 1 ml of concentrated H2SO4 was added to each 6 test tubes. By using dry and calibrated droppers, a drop of each sample was added to the test tubes. Any color change or warming effects were noted. Ignition Test 3-5 drops of the sample were placed in a small evaporating dish and was lighted by using a match. Presence and color of the flame were noted. Tests for Active Unsaturation Baeyer’s Test 2 drops of 2% KMnO4 was added to 5 drops of the sample in a dry test tube. The solution was vigorously shaken and the rate and extent atShow MoreRelatedSelection Methodology For Enhanced Oil Recovery Methods1254 Words   |  6 PagesThe paper introduces how selecting a methodology for enhanced oil recovery methods depends on good planning includes selecting the applicable EOR process, Characterizing the reservoir, defining parameters of the engineering design, accomplish field tests as needed , studying economic, and completing with a plan to achieve the project expectations. However this paper focus on non-thermal EOR methods and starts with a description of the EOR methods and explain their differences, then followed with explanationRead MoreChemistry : The Chemistry Of Life1165 Words   |  5 PagesMacromolecules- The Chemistry of Life Abstract: The purpose of this lab was to test for macromolecules consisting of starch (carbohydrates), lipids, proteins, and nucleic acids. Testing for the macromolecules occurred by using specific reagents on each macromolecule. If a color change occurred, then the sample would prove to be positive for that macromolecule. For simple sugars, the Benedicts solutions was used as the reagent; for starches, the iodine solution was used as the reagent; for lipidsRead MorePreliminary Test and Solubility Classification of Organic Compounds3813 Words   |  16 PagesPreliminary Test and Solubility Classification of Organic Compound Keene Louise Topacio, Christopher Jay Robidillo Abstract The experiment focuses on how to classify organic compounds by its functional groups. It is done by preliminary test and with the solubility test. Preliminary test used two known compounds also the unknowns. Physical state, color, odor, and ignition test were noted. The known compounds are inorganic and organic compounds. A comparison is made from the observation in the unknownRead MorePreparation of Detergents3377 Words   |  14 PagesPREPARATION OF DETERGENTS CONTENTS Introduction 1. 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Figure 1 in Appendix A graphically depicts the relationship between temperature and growth of different classifications of organisms. Figure 2 in Appendix A shows examples of different types of extremophiles as well as their preferred environmental parameters and unique adaptations. Not only do extremophiles have advantageous adaptations to be able to surviveRead MoreUnderstanding The Levels Of Biological Organization3020 Words   |  13 Pagesother organisms. they lack cells that have rigid wall.. =Prokaryotic cell wall is made out of peptidoglycan Explain why the old 5 kingdom system of classification had been revised. describe the unsolved problems of this new classification. DNA sequences, have led to an ongoing reevaluation of the number and boundaries of the kingdoms. New classification schemes have been proposed that range from 6 kingdoms to dozens of kingdoms. Describe the process and products of natural selection. 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Essay on The Benefits Of Medical Marijuana - 929 Words

The Benefits Of Medical Marijuana Are you sick of hearing your girlfriend nagging you about letting go of your pot pasttime? Have you been hearing a lot of negative things about the use of marijuana lately? Would you like to know what the real deal is behind the use of this infamous drug? Then read on because youre in for a surprise. One of the saddest things in North America is the lack of clinical trials on marijuana use. Many other countries in the world have already performed such tests in order to destroy myths about this drug, which has been in use for thousands of years... mainly for medicinal purposes. The data from previous studies, published in numerous books and scholarly journals, covered such matters as marijuanas†¦show more content†¦There is no evidence that marijuana use causes brain damage. Studies performed on actual human populations will confirm these results, even for chronic marijuana users (up to 18 joints per day) after many years of use. In fact, following the publication of two 1977 JAMA studies, the American Medical Association (AMA) officially announced its support for the decriminalization of marijuana. In reality, marijuana has the effect of slightly increasing alpha-wave activity in your brain. Alpha waves are generally associated with meditative and relaxed states, which are, in turn, often associated with human creativity Memory Marijuana does impair short-term memory, but only during intoxication. Although the authoritative studies on marijuana use seem to agree that there is no residual impairment following intoxication, persistent impairment of short-term memory has been noted in chronic marijuana smokers, up to 6 and 12 weeks following abstinence. What other myths have been going around about smoking a doobie? more marijuana myths Heart Problems It is accepted in medical circles today that marijuana use causes no evident long-term cardiovascular problems for normal persons. 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With marijuana becoming more accessible being legalized for medical and/or recreational use in 7 states, I will explain how if used properly can help many people suffering with serious problems like muscle pain, depression, anorexia insomnia and PTSD. But still there is the stereotype that marijuana is a dangerous recreationalRead MoreBenefits of Medical Marijuana Essay990 Words   |  4 Pages Legalizing Marijuana Marijuana is a very controversial and obtrusive issue in our society today. Although many have made malicious remarks about it in the past, and even still in the present, the truth and beneficial facts of marijuana are finally resurfacing. Unfortunately, our society has become a very critical crowd towards the legalization of marijuana due to the stereotypical view of the kind of people who are considered â€Å"pot smokers†. This contorted perception of a lazy and unmotivated AmericaRead More The Benefits of Medical Marijuana Essay1130 Words   |  5 Pageseffects than its other legal counterparts such as alcohol and tobacco. This kind of information calls into sharper focus the question on the minds of many as to why such a plant that is not only less harmful than legal drugs but has significant health benefits has remained illegal. People all over the world, continue to be tendered prescription medication, which in many cases further complicate health issues with its myriad of side effects. In fact, statistics have shown that approximately 100,000Read MoreThe Benefits Of Medical And Recreational Marijuana1740 Words   |  7 PagesPark Hegeler The Benefits of Marijuana The question of whether or not to legalize the medicinal and recreational use of marijuana has been an ongoing debate ever since President Nixon declared the war on drugs in 1971. The main question that circulates this debate is, do the benefits of medical and recreational marijuana justify its legality? Marijuana is one of the only drugs that has numerous medicinal properties that can do everything from managing chemotherapy side effects, to putting anRead MoreBenefits and Hazards of Medical Marijuana1034 Words   |  5 Pagesknow how to control or don’t have control over marijuana the weed program the development of the biological control of marijuana program/system, an advisory group was established at the request of biological control researchers who were seeking. It legalizing the use of marijuana as a social catalyst and as a tool with which prior physicians can know about the marijuana controversy, what are the benefits and hazards of medical marijuana? Marijuana is the worst thing you can ever get involve in,

An Evaluation of Blood Brothers Free Essays

Blood Brothers is about two twins who are separated at birth. One is sold and one is kept. They then meet later on but do not know they are twins until ‘the day they die’. We will write a custom essay sample on An Evaluation of Blood Brothers or any similar topic only for you Order Now It is told throughout the play, by the interventionist narrator, with songs as soliloquy’s, to assist telling the story and explaining the characters thought and feelings. One key theme throughout is superstition. It starts with Mrs Johnstone and her superstitious nature but then develops throughout the narrative as Mrs Lyons then becomes superstitious and things, happenings start to evolve around the superstitious nature. It begins to affect the play, as the characters start to behave differently, Mrs Lyons as she approaches a mental breakdown changes and her change in behaviour is effected by the superstition of having a sold child, and not only a child but a twin, if ever two twins shall meet and know of there brother hood both shall die on that same day. The portrayal of all the characters was extremely good. Especially Mickey. Played by the understudy; Richard Munday. His portrayal of the character I thought was incredible, I knew being a professional actor he would be good and good at playing small children but I was very, very surprised. The way he portrayed his character was (to me) extraordinary. His use of body language was great, the way he moved and walked and talked you could see his seven year old character shining through, so clearly I was amazed, that anyone could use such simple things to completely change their persona. They way he changed from a small child to a teenager, was great, everything changed about him except his true character and Mickey was still very much there, you could just see he had grown up. His character changing in age helped me understand the story more, I knew they grew up but seeing his age and character change and his relationships with different people I understood, the later themes in the play. Mickey and Eddie growing up with Linda. I could really see there relationship change as Linda fell in love with Mickey, his maturity was funny, the way he acted around her but it was distinctively different from when he was a younger child. His body language, speech but most of all the atmosphere was very different between the characters as they grew up especially Mickey’s towards Linda. Another character that surprised me was the teacher played by Paul Dallison who played the teacher. The transaction between the two different teachers was really good and surprised me. As well as very good (and quick) change of costume, the change in body language, voice and facial expression was extraordinary. As the posh teacher he was very smart and spoke very properly, articulating all words, standing up straight and being very respectable, then changing to the scruffy, worn down, teacher, who speaks very commonly, body language and posture change is very evident, he slumps, showing wariness and exasperation. His portrayal of the two different characters is great; the very quick change makes it even more impacting. The interventionist narrator plays a very important role in Blood Brothers. Throughout the play he tells the story, but a lot more than that. Being an interventionist narrator he intervenes and interferes with the characters and the play. Simply by bringing on most of the set and props, he becomes a very important part of the play. As the play goes on he beings to affect the play more and interfere. When Mrs Johnstone agrees to sell Mrs Lyons one of the twins, the interventionist narrator hands Mrs Lyons the bible so as to make Mrs Johnstone swear upon it. This is a good example of when the narrator interferes. Not only this but he plays on the characters conscious, playing with their minds, this is where, the songs as soliloquies come in, the narrator whispering in the characters ears, telling them what’s right, telling them what’s wrong. This adds a lot of dramatic tension to the play, because the narrator becomes very influential. One of the most powerful drama techniques used in blood brothers is the action before narrative. It has such a powerful ending that at first I thought it would take away from that but from seeing it I understand that it doesn’t and even gives more to the play and ending. It’s all done in silence, which adds dramatic tension in its self because it leaves the audience thinking and questioning. Even though the audience know what happens at the end, it is still shocking when it comes. There is a lot of dramatic irony, the audience know that Eddie and Mickey are twins separated at birth but the characters do not; this adds great tension because every time something serious happens you begin to wonder if their going to find out their twins. This is a very simple yet affective device because it adds more layers to the complex plot but not in a bad way, it positively keeps the audience really attentive. The songs used throughout the play help to enhance the production and add effect. With the narrator being the characters conscious and playing with there minds. Using the songs as soliloquy’s I thought was very powerful because it gives them more meaning and impact. Blood Brother being a play with songs and not a musical makes it better, because it not songs for the sake of it, it songs to convey feelings, emotions and happening making it more influential. Connecting to the audience in a different way entirely. They are more engaged and attentive. Listening for meaning and depth. There were many symbols used in blood brothers, the strongest of all being that blood brothers hand clasp. It being so strong and powerful, symbolising unity, love and bonds is used throughout the play. This helps to enforce the themes of unity and love which are shown throughout the play. The bond between Eddie and Mickey being blood brothers is the key symbolism of the hands clasping and is so powerful its and symbolic it’s used to enhance the themes and messages throughout the play. The lighting is very impacting on the performance as it changes throughout the play, as the play open there is red lighting; this creates a very sombre feeling. The red being symbolic of blood and death, creates tension, mystery and fear. This helps to convey the mood of the play. The action before narrative begins the show, with the death of both twins; the red light adds great affect and setting to the mood of the scene, as it does throughout the play. The change in lighting from dark to light at different points in the play is well used, the lights darken a lot when the narrator speaks to add dramatic affect, to his normally powerful but solemn speeches, being and interventionist narrator, always interfering this adds greater affect making his role even more mysterious. The lighting when he hands Mrs Lyons the bible is very affective, the narrator in darkness with his back to the audience and his hand and Mrs Lyons spot lighted gives great affect like a grave idea or action being planted so darkly from the shadows. The lighting I think as well as adding affect, gives to the audiences’ response more, so they enjoy the play to a greater extent. I thought the play was very, very powerful and I really loved it. You can tell that everything in the play is there for a reason, every prop and every lighting effect is obviously thought out, it adds so much effect and drama. Everything has a meaning and purpose, the play is very symbolic and influential. It has a very powerful ending, with a lot of dramatic potential. I thought Eddie and Mickey not finding out they were twins was very good, as it used a lot of dramatic potential, prolonging the drama, making the ending more impacting and shocking when it happened. I loved the entire play but I thought the ending was so unexpected that it made the play incredible and dominating. How to cite An Evaluation of Blood Brothers, Papers