of solvent extraction‚ also known as liquid-liquid extraction‚ a method of separating two materials with different physical and/or chemical properties. Two methods of evaporation will be used to finally determine the concentration of impurity- one using an explosion-proof hot-plate‚ and one using a rotovap. III. Theory Fig. 1a+1b. Figure 1a shows how water and oil separate in the separatory funnel‚ while figure 1b shows the actual apparatus. Liquid-Liquid extraction is a versatile and dependable
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LIQUID CRYSTALS Introduction What are Liquid crystals ? Its History & Discovery Any of various liquids in which molecules are regularly arrayed like a solid crystal along one or two dimensions‚ but are free in the other dimensions as with typical liquids. Liquid crystals often display unusual and often manipulable optical properties such as anisotropic scattering. They can be divided into two classes‚ Thermo tropic(nematic‚ chiral nematic‚ and smectic.) and Lyotropic. Transitions to thermotropic
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ERP Implémentation Méthodologies Paul Bruges A methodology is a roadmap to an implementation. The purpose of a methodology is to deliver an implementation on time‚ according to specifications and within budget. Most vendors‚ especially in the software industry‚ have developed their own methodologies. Consulting companies also developed their own methodologies in relation to a product. Vendors primarily use methodologies as a marketing tool in order to alleviate the fears of the upper management
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certain fluid. In this experiment two solutions are used. According to the definition of viscosity mobile liquids have a relatively low viscosity. Fluidity is the reciprocal of viscosity‚ given as equation 1: F=1/ η. Fluidity is advantageous because solutions of mixed solutions of nonassociating liquids are roughly additive. In this experiment binary solutions are used‚ so if each pure liquid has fluidities Fa and Fb‚ the fluidity of a mixture is given by: Equation1 (Halpern‚ 17-3).
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Gillian Lazar LITERATURE AND LANGUAGE TEACHING A guide for teachers and trainers {v}Contents Thanks page viii Acknowledgements ix Introduction xii 1 Using literature in the language classroom: 1 The issues 1.1 What is literature? 1 1.2 What is distinctive about the language of literature? 5 1.3 The reader and the text 8 1.4 Literary competence and the language classroom 11 1.5 Why use literature in the language classroom
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Organizational Change Plan – PB Leiner USA Cody Kane Organizational Development Professor Lee Walker 12/15/2013 Executive Summary PB Leiner is one of the largest gelatin manufacturers in the world that strives for customer excellence‚ employee safety‚ and product guarantee. With every organization PB Leiner wants to see areas of cost reduction. Goals are set by the management team to make the demand happen. Research determined that the strongest area to reduce
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Liquids & Solids Pre Lab Questions: 3pts 1. What are the learning goals of this lab? The learning goal of this experiment is to view and experience the melting point and boiling point of different substances. 2. Why is acetamide not allowed in contact with your skin? What precautions does one have to take to work with this chemical? Acetamide is a carcinogen‚ which can cause cancer. Therefore‚ it should not be allowed to come in contact with a person’s skin. Any person working with this chemical
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SWOT Analysis SWOT is an acronym used to describe the particular Strengths‚ Weaknesses‚ Opportunities‚ and Threats that are strategic factors for a specific company. A SWOT analysis should not only result in the identification of a corporation’s core competencies‚ but also in the identification of opportunities that the firm is not currently able to take advantage of due to a lack of appropriate resources. (Wheelen‚ Hunger pg 107) The SWOT analysis framework has gained widespread acceptance because
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Mohammad Ash-Shahid Biruar March 7‚ 2015 Case Study: Banana Time I. STATEMENT OF THE PROBLEM This case deals with the members of the “clicking” work group. The problem appears to be the lack supervision and management oversight as this group is completely isolated from other areas of the factory. This issue has led to different concerns including horseplay‚ extended breaks and operator disruptions which all lead to a loss in production. II. OBJECTIVES 1. To address the operator’s
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8/17/2014 Where to find government regulations for manufacturing‚ Manufacturing Info Manufacturing Info Search This Site Search Custom Search F R E E : GE T MO R E LE A D S! WHERE TO FIND GOVERNMENT REGULATIONS FOR MANUFACTURING When it comes to establishing regulations for the manufacturing industry‚ the government is eager to institute as many rules as they think are necessary in order to protect the health and safety of all parties involved. Yet at the same time government
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