20 – 03 – 13 EXPERIMENT: - PREPARATION OF POLYURETHANES AIM Synthesis of polyurethanes OBJECTIVES - Mixing a diisocyanate and a diol in polyurethane synthesis of two distinct products. - Comparing polyurethane from castor oil to that made from polyethylene glycol. - To establish the type of foams in terms rigidity or flexibility. THEORY Polyurethanes‚ also known as polycarbamates‚ belong to a larger class of compounds called polymers. Polymers are macromolecules made up
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OF PURE AND APPLIED CHEMISTRY Visayas State University Visca‚ Baybay City‚ Leyte Name: Alecsa May S. Celaya BS-Chemistry 3 Date Submitted: December 19‚ 2014 Lab. Schedule: MW 2:00 – 5:00 pm Rating: Group No. 11 Experiment No. 5 Preparation of KAl(SO4)2•12H2O (Alum) OBJECTIVES This experiment aimed to: prepare KAl(SO4)2•12H2O‚ commonly referred to as alum‚ from aluminum metal from a canned soft drink‚ and determine the mass of the alum collected and its percent yield. METHODOLOGY
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Preparation Outline Topic: The various usage of photography Specific purpose: To inform my audience about the various usage of photography Central idea: Thus‚ I would like to share with you about the various usage of photography Introduction I. Before I go further with my presentation‚ let me show you a photo A. Have you seen this photo before? B. What you get when you look at this photo once? C. Do you agree with me if I say this photo deliver information directly by just looking
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Report preparation Title page: Research about why farmers are not getting fair price when the commodities price increasing. Letter of transmittal: This letter contains our research experience about this topic and also contain our initial information about research. This letter also contain how to implementation of finding. Letter of authorization: This letter is written by authority who will be assigned to complete the research. This letter also contain scopes and terms of the contract
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Preparation of Bromotriphenylmethane Abstract The structure of a major component of star anise oil was derived by analyzing its IR spectroscopy melting point of after oxidation and purification. From the evidence obtained‚ it was concluded that the exact structured should be p-methoxybenzoic acid. Introduction The purpose of this experiment is to determine the structure of the major component of star anise oil. It is already known that this component has a molecular formula C10H12O. This
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Preparation and melting point of Aspirin Aspirin is a painkilling drug and is produced worldwide to reduce and stop pain. Aspirin is made up of ehtanoylation of 2-hydroxbenzenecarboxylic acid in a presence of phosphoric acid. AIM: The aim of the experiment is to prepare and produce aspirin as pure as possible. I will do this threw preparing the aspirin and purifying the product threw recrystallization. I will then obtain a melting point of my product to get an estimate of its purity. By the end
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The Differences in Competencies Between Nurses Prepared at the Associate-degree Level Versus the Baccalaureate-degree Level. Amanda J. Perez Grand Canyon University: NRS-430V-0105 NRS-430V Professional Dynamics March 10‚ 2013 The Differences in Competencies Between Nurses Prepared at the Associate-degree Level Versus the Baccalaureate-degree Level. Although both an associate-degree level and baccalaureate-degree level prepared nurses may sit for the same NCLEX-RN exam‚ “nurses prepared
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BU481‚ fall 2011 - Case Preparation Questions V1.1 Use the following questions to guide your thinking and analysis as you prepare a case for class. The instructor may or may not ask these specific questions in class. Case: Arrow Printing and Publishing 1. Identify what Dunnett wants to do. This analysis requires an understanding of the owner’s personal objectives as well as the corporate objectives set out for business. 2. Identify what Arrow needs to do in order to be successful. This involves
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TEKNOLOGI MARA SARAWAK English for Academic Purpose (BEL 311) Prepared by‚ Lauraricka Brenda Benjamin 2010992969 IM 110 Group 3 B Title‚ The Importance of Teaching Mathematics and Science in English (PPSMI) Date of Submission‚ 16th of December‚ 2011 Lecturer’s name‚ Nurul Ain Binti Sulaiman The Importance of Teaching Mathematics and Science in English (PPSMI) I Introduction The whole idea of a good education system is to prepare out children so that they are better
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The Importance Of Teaching Culture In The Foreign Language Classroom Radical Pedagogy (2001) ISSN: 1524-6345 The Importance Of Teaching Culture In The Foreign Language Classroom Language And Culture: What IS Culture And Why Should IT BE Taught? In this section‚ we will briefly examine the relationship between language and culture and see why the teaching of culture should constitute an integral part of the English language curriculum. To begin with‚ language is a social institution‚ both shaping
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