Flame Lab Objective: How an electron absorbs energy and re-emits it as light and why different elements have different spectra. Also to learn how to use flame tests to determine the identity of unknown mixtures. Hypothesis: We know that certain compounds will burn certain flame colors because they emit different wave lengths. Introduction: Neils Bohr made the “Bohr’s Model” in 1922‚ he found that electron travel in specified fields – which‚ when excited‚ will jump to different rings
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indicated by a very pale pink color. To calculate the molarity of NaOH‚ the following equation was used MNaOH x VNaOH = MKHP x VKHP therefore the molarity was .125 M. INTRODUCTION This lab experiment covers the preparation of standard solution and the acid/base titration. The first part of the lab is to prepare a standard solution of Potassium hydrogen per. A standard solution is a solution of known concentration‚ in which it is prepared using exacting techniques to make sure that the molarity
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CHEMICAL ENGINEERING University of Engineering & Technology‚ Lahore Mass Transfer Lab Introduction Separation equipments account for a major part of the capital investment in process industry. Fundamental laws governing the design and operation of these equipments are covered in the course “Mass Transfer”. The purpose of this lab is to introduce the undergraduate students with the most important separation equipments in the process industry‚ and provide a hands-on training of the proper operation
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steps in the crystallization of an organic solid from a solvent and state the purpose of each operation. 1] dissolve solid product in minimum volume of hot solvent .. Purpose ... to get into solution 2] cool solution in a mixture of ice‚ water and salt. Purpose .. to enable pure product to crystallise‚ solubility decreases with temp‚ so cold. Impurities are present in small quantities‚ so do not saturate and are left in solution. 2a] if it all sets solid‚ you haven’t used enough solvent‚ so add a
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sample of foul water using oil-water separation‚ sand filtration‚ and charcoal adsorption and filtration. Procedure: First‚ you have the measure the foul water sample and record it in your data table. You have to record what you see and smell before you filter anything out. Then you have the separate the oil from the water using the ring stand‚ rubber tubing‚ pinch clamp and funnel. After you have done that you record your results for after Oil-Water separation. Next‚ you have to put sand in a plastic
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Date of Experiment: September 10th‚ 2013 Organic Chemistry II – CHLB330 Name: Symone E. MoxeyLab Partner: Lynden Cooper Synthesis of Aspirin (Acetylsalicylic Acid) Abstract:- Aspirin (acetylsalicylic acid) is produced experimentally in the lab. The resulting percentage yield is 65.5%. The purity of the obtained product is tested using the melting point and Ferric Chloride Test (FCT). The aspirin was massed‚ and the melting point was determined. Based on the data collected‚ there was a total
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The moving phase is either a gas or a liquid and the stationary phase is usually a solid. The mixture to be separated is combined with the mobile phase. As the mobile phase "solution" flows over the stationary phase‚ the components of the mixture continuously equilibrate between the phases‚ based on their particular affinity for each phase. A higher attraction for the mobile phase leads to a higher concentration
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MARKETING MIXTURE OF MC CAIN FOODS LTD. McCain Foods Limited was established in 1957‚ Canada by four brothers. Today the company has more than 20‚000 employees(thetimes100.co.uk‚2010) ‚ operating in 57 factories worldwide(thetimes100.co.uk‚2010) . Products are being sold in 110 countries (kozagida.com.tr‚N/A) and the company is controlling the world potato chip market with a 33% share of the market (kozagida.com.tr‚N/A) with an endorsement of 6 million dollars (kozagida.com.tr‚N/A) and sales of
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