Preparation of Acetylsalicylic Acid Abstract Acetylsalicylic acid was prepared using salicylic acid and acetic anhydride. As a result‚ a white‚ powdery substance was formed (0.1931g‚ percent yield 91.30%) and was defined by melting point (124.5 – 134.5°C) and observation of color change with ferric chloride. Introduction Acetylsalicylic acid (aspirin) is one of the most popular analgesic drugs on the market today. It also acts as an antipyretic and anti-inflammatory drug. Salicylic acid itself
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Describe what Montessori meant by ‘New Education’. As we know of our world today‚ there has been lots of development in technology and in its economy‚ progressed. However‚ despite all these good progresses‚ man still do not seem to be able to live in harmony‚ both with himself and the world around him. There have been two World Wars‚ which have been disastrous and still a lot of cruelty‚ warfare and poverty prevailing in the world. Man is still facing conflict and sufferings in the modern world
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Experiment 6 Preparation and reactions of boric acid Objectives: To prepare boric acid from sodium tetraborate (borax) To carry out tests on the prepared sample of boric acid To study the physical and chemical properties of boric acid Introduction: Boron is an element in the p-block of the periodic table. It has the electron configuration of 1s22s22p1 and is in group 3 or goup 13 (IUPAC classification). In nature‚ it consists of two isotopes 10B (19.6%) and 11B (80.4%). Boron is bonded
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Lab 5: Preparation of Synthetic Banana Oil September 20th‚ 2012 Purpose: The main purpose of this experiment was to synthesize banana oil (isopentyl acetate.) Ester are often prepared by the Fischer esterification method‚ which involves heating a carboxylic acid with an alcohol in the presence of an acid catalyst. Theory: Synthesize isopentyl acetate by combining isopentyl alcohol with acetic acid and sulfuric acid and then heating the reaction mixture under reflux for an hour. The alcohol
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modern‚ will make the Delhi Games special. Right now what you see and really experience are the infra structural changes that are taking place‚ to be honest‚ on daily basis. But now we even have news from across the country informing us about the preparation of athelets. As in the words of Indian sports minister Suresh Kalmadi‚ "The colour‚ costumes‚ the traditions and heritage will be world class‚ the public will be welcoming and friendly and the flair of India is what will make the next Games really
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GUIDE TO ASSIGNMENT PREPARATION AND CRITICAL ANALYSIS CONTENTS Page 1. Introductions to assignments and their purpose 3 2. The Critical Review 5 i) The Purpose of the Critical Review 5 ii) The Content of the Critical Review 6 3. Meeting the Assessment Criteria 7 4. Examples of two assignments showing the significance of critical analysis 9 5. Writing assignment reports 13 1.) Introduction to Assignments and Their Purpose How will
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Preparation of Synthetic Banana Oil Introduction: In this lab the synthesis‚ purification‚ and characterization of isoamyl acetate‚ or banana oil‚ was determined. The synthesis was completed by a reversible esterification reaction which required the heating of glacial acetic acid and isoamyl alcohol‚ combined with a sulfuric acid catalyst in hexane. In order to increase the efficiency of the reaction‚ LeChatelier’s Principle is utilized by removing water from the products. As a result‚ the reaction
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ingredients of the Montessori method : the directress and the prepared environment Motto:’’ The teacher as an adult should try to interpret the child’s needs and meet them as best as he can by preparing a really suitable environment. This may be the beginning of a new epoch in education‚ which will consider how it can assist the life of the child.’’ (Montessori‚ M.‚ The Secret of Childhood‚ Part1‚ Chapter IV: Where adults impede the question of sleep‚ 1963‚ p.79). The child in the Montessori school needs
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The sports community now recognizes that mental factors such as confidence‚ composure‚ focus‚ and motivation are highly significant to athletic performance. As a result‚ over the year’s performance enhancement has become an emerging career track within the field sport psychology. Sport psychology (or sports psychology) is the study of the psychological factors that affect participation and performance in sports. Sport psychology professionals who focus on performance enhancement aim to increase athletic
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JOHN LOCKE "Every man has a property in his own person. This nobody has a right to‚ but himself." – John Locke Childhood John Locke was born on August 29‚ 1632‚ in Wrington‚ a village in the English country of Somerset. He was baptized the same day. Soon after his birth‚ the family moved to the market town of Pensford‚ about seven miles south of Bristol‚ where Locke grew up in an old fashioned stone farmhouse . His father was a county lawyer to the Justices of the Peace and his mother
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