Experiment 19 - Determination of the equilibrium constant for the reaction Fe3+ (aq) + SCN( (aq) = FeSCN2+ (aq) Object: To determine the equilibrium constant by a colorimetric method Theory: Colorimetric methods of analysis are usually applied to the determination of small concentrations of either inorganic or organic materials in a solution. The constituent sought must be coloured or must be capable of reacting with a reagent to produce a substance having a suitable colour. Beers Law‚ which
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Everyone experiences a moment in their life that defines who they are. Your experiences are what make you unique. For me‚ this moment happened only a few years ago. My continual drive for perfection and determination to succeed became evident all within the same day. On that particular day I learned just how relentless I was in my ability to practice‚ how to keep a good composure through difficult situations‚ and how my continual strive to stay focused would lead to success. The many hours of practice
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Determination of the Activation Energy of an Enzyme Catalysed Reaction PRACTICAL Report & Criterion Reference Grid * The expected sequence and details required for your practical report are outlined below. Please follow them closely‚ as they will facilitate the production of a structured report. * An introduction giving a synopsis of the experiment and the importance of rates of reaction and activation energy. This section should also state the aim of the practical (0.50-page) – 5 marks
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Paikea’s Determination to Become the Chief Whale Rider by Niki Caro is a story about a 12 year old girl who is the true heir to be chief of the tribe but her grandfather‚ following Maori traditions‚ believes that the role of chief is to be the first born son of the chief only. Throughout the movie‚ Paikea is determined to prove that she is the true heir and can be the chief of the tribe. This movie shows how she struggles to get her grandfather’s approval due to his beliefs and the tribe’s tradition
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Modified Winkler method for dissolved oxygen determination Abstract In this study the group has determined the presence of oxygen in sample through a modified winkler method. The amount of oxygen is determined through a series of reaction. A body of water can sustain life if dissolved oxygen is sufficed. Depletions in dissolved oxygen can cause major shifts in the kinds of aquatic organisms found in water bodies. Introduction The amount of dissolved oxygen present in water or wastewater
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DATE PERFORMED: JANUARY 6‚ 2011 SPECTROPHOTOMETRIC DETERMINATION OF THE EQUILIBRIUM CONSTANT OF A REACTION ABSTRACT The objective of the experiment was to determine the equilibrium constant of the reaction forming ferric thiocyanate through the use of Spectrophotometry. For the calibration‚ five standard solutions were prepared‚ then their respective absorbance values that were obtained through the use of the spectrophotometer‚ were plotted versus the concentration of the analyte so that a calibration
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NAME : ZULHAIRI BIN MAMAT DATE : 24 AUGUST 2011 TITLE OF EXPERIMENT : DETERMINATION OF THE RELATIVE MOLECULAR MASS OF AMIDOSULPHURIC ACID DATA COLLECTION AND PROCESSING. QUANTITATIVE DATA Type equation here. Experiment | Burette reading / cm3 | Volume of solution used(±0.1 cm3) | | Initial reading(± 0.05 cm3) | Final reading(± 0.05 cm3) | | 1 | 0.00 | 24.70 | 24.7 |
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The Use of Cooling Curves in the Determination of the Phase Diagram for a Lead-Tin System V.O.L.Tabell Department of Mining‚ Metallurgical and Materials Engineering University of the Philippines‚ Diliman vo_tabell@yahoo.com Abstract This paper discusses the use of the cooling curves in the determination of the phase diagram of a Lead-Tin system. The inflection points of these cooling curves were obtained by melting a series of mixtures of lead and tin at varying compositions. These critical
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On the other hand‚ in the article When Self-Determination Runs Amok by Callahan‚ he explores the concept of active and passive euthanasia‚ but for him it’s not so much of an ethical debate – as it is for Rachels – but rather divides his theory into three parts. First‚ he speaks about the legitimate conditions under which an individual may kill another. Secondly‚ he speaks about meaning and limits of self determination‚ arguing that this type of view only leads to a "idiosyncratic view of the good
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INTRODUCTION Alkaline phosphatase catalyses the hudrolysis of p-nitrophenyl phosphate (a synthetic substrate) at an optimum pH of 10.0 with the liberation of p-nitrophenol. The substrate is colourless‚ but the product p-nitrophenol is yellow in alkaline solution‚ absorbing maximally at 405 nrn. Thus a convenient assay for this enzyme involves monitoring the change in absorbance of the reaction medium at 405 nm. Exergonic (i.e energy producing reactions) exhibit a negative free energy change
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