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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STUDENT ID : NO OF EXPERIMENT : TITLE OF EXPERIMENT : PREPARATION OF BIS(ACETYLACETONATO)COPPER(II) DATE OF EXPERIMENT : PRACTICAL GROUP : LECTURER : Objective: To synthesize the bis(acetylacetonato) copper(II) To identify the nature of ligand.
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About Emirates On 25th October 1985‚ Emirates flew its first routes out of Dubai with just two aircraft—a leased Boeing 737 and Airbus 300 B4. Then as now‚ our goal was quality‚ not quantity‚ and in the years since taking those first small steps onto the regional travel scene‚ Emirates has evolved into a globally influential travel and tourism conglomerate known the world over for our commitment to the highest standards of quality in every aspect of our business. Though wholly owned by the Government
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Cassady Bailey Individual Research Report: Peru Consulting Practicum Topic: Peru Culinary Tourism Supply and Demand Overview The scope of this report is broadly based which is related to its purpose: it is a preliminary research report for a consulting project to be conducted by GWU Masters of Tourism Administration students in Cusco‚ Peru June 11-22‚ 2012. It will attempt to give a situational analysis of the Peruvian culinary tourism environment with an emphasis on Lima and Cusco‚ and provide
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INTRODUCTION Isopentyl acetate‚ "banana oil"‚ is a naturally occurring compound that possesses a distinctive odor. It is found in bananas‚ as well as many other organisms. This experiment attempts to produce isopentyl acetate by heating under reflux‚ which involves heating the mixture in a flask with a condenser placed vertically in the neck since any escaping vapours condense and run back into the flask‚ by combining isopentyl alcohol with acetic acid and an acid catalyst. The product was isolated
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GUIDELINES ON COMMON TECHNICAL DOCUMENT (CTD) 28.10.2010 GUIDANCE FOR INDUSTRY ON PREPARATION OF COMMON TECHNICAL DOCUMENT FOR IMPORT / MANUFACTURE AND MARKETING APPROVAL OF NEW DRUGS FOR HUMAN USE (NEW DRUG APPLICATION – NDA) DRAFT GUIDANCE This guidance documents is for feedback purpose only Comments and suggestion on this document should be submitted within 60 days of publication to CDSCO‚ FDA Bhavan Kotla Road‚ New Delhi – 110002 CENTRAL DRUGS STANDARD CONTROL ORGANIZATION DIRECTORATE
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NESTLE: Background: Nestlé is the world’s largest food and beverage company (http://www.nestle.co.za/about_us/about_us.asp). At the end of 2004 Nestle sales amounted to over R86 billion and the company today employs more than 250 000 people around the world (http://www.nestle.co.za/about_us/about_us.asp). In South Africa‚ Nestle employs nearly 4000 people and operates over 12 factories (http://www.nestle.co.za/). Nestlé’s main objective is to manufacture the best quality and most innovative products
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