Introduction An electrophile is a reagent attracted to electrons and accepts an electron pair in order to bond to a nucleophile. Electrophiles will attack benzene and result in hydrogen substitution. However‚ this is not thermodynamically favoured because a sp3 hybridized carbon is generated‚ which disrupts the cyclic conjugation. In order to regenerate the aromatic ring‚ a proton is lost at the sp3 hybridized carbon. Thus‚ p-Nitroaniline can be prepared by means of electrophilic aromatic substitution
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The Preparation of 1- Bromobutane Introduction... Aim : To prepare 1-Bromobutane. Background : The most common way of preparing alkyl halides‚ which are very useful intermediates in syntheses‚ is the replacement of the OH group of an alcohol by a halogen. This replacement is a nucleophilic substitution reaction‚ and alcohols do not undergo nucleophilic substitution reactions because hydroxide ison is strongly basic and a poor leaving group. However‚ alcohols readily undergo
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1/ What is your mom like ? ( My mom‚she’s tall and look very beautiful with her big black eyes and short hair. She’s the one who gave birth to me and I know she unconditionally loves me‚loves our family She’s caring‚open‚honest and very understanding She always works hard to give me everything I deserve She knows what is the best for me and always listens to my problems She takes care of her family well and I love every dishes she cooks My mom‚in other words‚she means everything to me and
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December 14‚ 2010 Conductivity of Ionic solutions Introduction This lab report is about the conductivity of ionic solutions. In class we have been discussing wether all ionic solutions conduct equally well. If an solvent solution conducts electricity‚ then it must contain ions. So measuring the conductance of solutions can tell you whether the solutes in the solution are dissociated into ions. (Conductivity) Any type of solution‚ even ionic solutions‚ provide resistance to the flow of current
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Nor Amirah Farhana Nawawi‚ Mia Organic Chemistry Lab Report 2 Jessica Sammons TITLE: Preparation of 2-butanone INTRODUCTION: The goal of this experiment was to prepare 2-butanone from 2-butanol. Chromic acid was used in this experiment to in order to prepare 2-butanol. Cr (VI) is rather orange‚ but Cr (III) is dark green - therefore by oxidizing the alcohol (2-butanol)‚ an orange Cr (IV) is reduced to green. NMR and IR tests were taken to determine the result‚ and the crystallized derivative of
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Preparation and Recrystallisation of Aspirin Contents Page Synopsis iii 1 Introduction 1 1.1 Objective 1 1.2 Background 1 2 Theory 1 3 Procedure 2 3.1 Materials 2 3.2 Preparation 2 3.3 Recrystallisation 3 3.4 Determination of Melting Point 3 4 Results and Calculation 4 4.1 Mass 4 4.2 Percent yield 4 4.3 Melting Point 4 4.4 Appearance 4 5 Discussion 5
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How does the knowledge of the foundations and history of nursing provide a context in which to understand current practice? When we have knowledge of the foundations and history of nursing‚ it provides groundwork in which to understand our current practice by recognizing the contributions‚ triumphs and struggles our ancestors have endured to help make our profession what it is today. Also nurses can appreciate how much the nursing profession has grown from the past to present day and became more
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Unit 8. Life changes. The two of you are in love and have made the exciting announcement that you are going to get married. Suddenly you are overwhelmed with the idea that you have a wedding to plan. There are many questions to ask as you begin planning your wedding. Wedding Date and Venues. It is important to set a wedding date before you move forward with many plans. Discuss a date with your fiancée and make preliminary decisions about where you want to hold the wedding and reception. Budget. Set
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ATP synthase (EC 3.6.3.14) is an important enzyme that provides energy for the cell to use through the synthesis of adenosine triphosphate (ATP). ATP is the most commonly used "energy currency" of cells from most organisms. It is formed from adenosine diphosphate (ADP) and inorganic phosphate (Pi)‚ and needs energy. The overall reaction sequence is: ADP + Pi → ATP‚ where ADP and Pi are joined together by ATPsynthase Energy is often released in the form of protium‚ or H+‚ moving down an electrochemical
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Topic: Nursing History‚ Theories‚ and Conceptual Model Course Contents Lecture Note 1. NRS-430V Lecture 2 Read Lecture 2. NRS-430V Lecture 2 0 Textbook 1. Conceptual Foundations: The Bridge to Professional Nursing Practice Read Chapters 1 and 5 in Conceptual Foundations: The Bridge to Professional Nursing Practice. http://evolve.elsevier.com Electronic Resource 1. A Foundation for Professional Nursing Practice View and interact with “A Foundation for
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