PREPARATION OF ASPIRIN AND DETERMINATION OF THE MELTING POINT Ferrer‚ Lara Melissa V. Faculty of Engineering University of Santo Tomas Manila‚ Philippines ABSTRACT This experiment involved three steps: synthesis of aspirin‚ isolation and purification‚ and the estimation of purity of the final product. The synthesis involved the reaction of salicylic acid and acetic anhydride in the presence of a catalyst‚ phosphoric acid‚ H3PO4. When the aspirin was prepared‚ it was isolated and filtered. The percentage
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The Differences in Preparation between the ADN and BSN Dana Grand Canyon University: NSR- 430vProfessional Dynamics September 22‚ 2013 Many people from all walks of life decided to go back to school in an effort to obtain a job so they can afford to care for their family. It may be a single mom or dad‚ some one that is older‚ a young student who is fending for themselves‚ no matter what the story they have to start somewhere. Prior to becoming a nurse‚ one doesn’t understand the real difference
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Title: Preparation and Standardization of a Sodium Hydroxide Solution Objective/Purpose: The objective of this experiment will be the standardization of sodium hydroxide using potassium hydrogen phthalate by the titration method. Introduction: The concentration of solutions can be reported in terms of molarity and normality. Molarity is equal to: HCL‚ HBR‚ H2SO4‚ HNO3 M = mol Solute (mol) (Monoprotic) (Diprotic) _______________ V(L)g solutions (L)
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Research Paper on “Preparation for the Next Life” Preparation for the Next Life is a fiction book written by American author‚ Atticus Lish. It was originally published in 2014. It is a very deep and a meaningful book. It is about life‚ bad options‚ and love. The novel is mostly over a love story of Zou Lei‚ a young lady who is an illegal immigrant from Afghanistan‚ and of Brad Skinner who is a war veteran. Skinner suffers from some severe post-traumatic stress disorder which leads him to depression
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Proper Preparation Prevents Poor Performance History and Overviews of Project Management As a discipline‚ project management developed from several fields of application including civil construction‚ engineering‚ and heavy defense activity. Two forefathers of project management are Henry Gantt‚ called the father of planning and control techniques‚ who is famous for his use of the Gantt chart as a project management tool (alternatively Harmon gram first
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Preparation of Sodium Chloride through titration Abstract: acid-base titration is a technique commonly used to determine the moles of acid in a sample by adding a known volume of strong base of a known concentration. The strong base provides the hydroxide ion‚ to react quantitatively with the acid. The point at which the acid is completely and exactly consumed the known quantity of base is called the equivalence end point and is signalled by a colour change in the solution (end point). This colour
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Steps in the data preparation process. Editing involves reviewing questionnaires to increase accuracy and precision. It consists of screening questionnaires to identify illegible‚ incomplete‚ inconsistent‚ or ambiguous responses. Responses may be illegible if they have been poorly recorded‚ such as answers to unstructured or open-ended questions. Likewise‚ questionnaires may be incomplete to varying degrees. A few or many questions may be unanswered. At this stage‚ the researcher makes a preliminary
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LABORATORY REPORT 4 PREPARATION OF ALUM FROM ALUMINUM METAL Huy Nguyen October 2nd‚ 2012 The objective of the laboratory is to synthesize alum (KAl(SO4)2.xH2O) from aluminum powder and to determine the proportion of water in the alum crystals. Alum is a product from the reaction between potassium hydroxide and sulfuric acid. The reaction include several steps‚ as followed: Aluminum powder reacts with potassium hydroxide to generate Al(OH)4- ions and release hydrogen. 2 Al(s) + 2 KOH(aq)
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Preparation and SN1 Reactivity of 2-Bromobutane Whitney Bellido Department of Chemistry‚ Illinois State University‚ Normal‚ IL 61790-4160 Submitted: April 4th‚ 2013 Introduction The overall goal of this experiment is to understand and be familiar of SN1 reactivity. We also learned how to prepare 2-Bromobutane by learning how to distill and extract this product from its organic layer. Finally‚ another goal was to specifically understand the relative reactivity of alkyl halides under SN1 conditions
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Discussion and Conclusion: Preparation of 1-Bromobutane The purpose of this experiment was to demonstrate the conversion of a primary alcohol‚ 1-butanol‚ to a primary bromoalkane‚ 1-bromobutane‚ a SN2 reaction. The conversion of 1-butanol to 1-bromobutane relies on sulfuric acid which plays two important roles. First‚ it protonates the alcohol of 1-butanol to form an oxonium ion which is a good leaving group. Secondly‚ it produces the hydrobromic acid‚ the nucleophile‚ which attacks 1-butanol
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