Analytical measurement: measurement uncertainty and statistics Ricardo Bettencourt da Silva‚ Ewa Bulska‚ Beata Godlewska-Żyłkiewicz‚ Martina Hedrich‚ Nineta Majcen‚ Bertil Magnusson‚ Snježana Marinčić‚ Ioannis Papadakis‚ Marina Patriarca‚ Emilia Vassileva‚ Philip Taylor Editors: Nineta Majcen‚ Vaidotas Gegevičius Joint Research Centre Analytical measurement: measurement uncertainty and statistics Editors: Nineta Majcen Vaidotas Gegevičius Authors: Ricardo Bettencourt da
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INTRODUCTION For this experiment we studied an oxidation-reduction reaction of magnesium and hydrochloric acid solution. We compared the experimental measured amount of a product and the amount predicted by the theoretical calculation of a balanced equation: Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g) PROCEDURE First we obtained a strip of pre-cut magnesium ribbon‚ cleaned it with steel wool to remove any signs of oxidation from the strip (which would alter our results)‚ and then weighed it (individual
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Abstract The diameter and mass of a steel ball was measured and recorded by the class. These measurements were to determine error in measurements and the derived quantities‚ volume and density. The diameter was determined using a dial caliper and the mass‚ a triple beam balance. The results of the error for diameter were not as expected while the results of the volume and density were deviated greatly from expectations; only the weight had a small error. Experimental Instruments:
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Running head: MULTIFETAL PREGNANCY REDUCTION Multifetal Pregnancy Reduction: 1 MULTIFETAL PREGNANCY REDUCTION 2 Multifetal Pregnancy Reduction: Conflicting values or beliefs about the right or best course of action often form the basis for moral dilemmas (Simmonds‚ 2012). Moral distress is associated with how the nurse perceives her role (Burston & Tuckett‚ 2012). The advanced practice nurse may experience moral distress when faced with an instance of knowing the correct course
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9.1.1 Define oxidation and reduction in terms of electron loss and gain. Oxidation: the loss of electrons Reduction: the gain of electrons 9.1.2 Deduce the oxidation number of an element in a compound. Always determine elements that never change their oxidation number then ensure the charge of whole molecule is right. N.B. Atoms in elemental state have oxidation numbers of 0 9.1.3 State the names of compounds using oxidation numbers. Example of this in iron‚ can be iron(II) or iron(III) 9.1.4 Deduce
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Introduction This report will try to identify what changes can be made by the audit firm if a substantial reduction in audit fees is agreed with the client‚ considering current economic climate. Furthermore it will discuss whether these changes could risk the quality of the audit. The research was carried out in Aldrich library and is based on various research articles‚ articles in professional magazines and the financial press. The current economic climate The current
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The purpose of this lab was to measure the reduction potentials of metals and to understand how a reduction-oxidation relationship works to produce spontaneity. Lastly‚ these results were used to determine the Faraday’s constant and Avogadro’s number by electrolysis‚ which is chemical decomposition produced by passing an electrical current through a solution with ions. The primary objective of part one of this experiment was to discover how the properties of an electrochemical cell works. An electrochemical
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Running head: Budget 1 Budget Deficit Reduction Melissa Dick Budget Deficit Reduction History has a way of repeating itself and the budget deficit and attempts to reduce it are no exception. The budget deficit is an annual amount that the federal government sets forth based on the amount of tax revenue it receives. When the amount spent goes over the amount received‚ you have a deficit. The United States government and the economy has gone in cycles when the budget deficit
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This essay is an attempt to explain the role of investment in poverty reduction. In order to achieve this‚ an exposition of the theoretical assumptions on the linkages between investment and poverty reduction will be undertaken. In addition‚ relevant definitions and practical examples will be cited. A conclusion will then be drawn from the discourse. As is well known‚ poverty is multi-dimensional. There are several different indicators of well-being (e.g. education‚ health‚ nutrition‚ security)
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Chapter four Self-Assessment For many individuals feelings of anxiety and uncertainty occur when they meet someone for the first time. The feeling of anxiety can be managed in a number of ways. One way that you can go about managing your anxiety is by giving a compliment. A majority of people enjoy receiving compliments because they make people feel good about themselves. In return you will most likely receive a compliment back which will make you feel a lot better about this first encounter. Another
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