Application of statistical concepts in the determination of weight variation in samples G.E. Institute of Biology‚ College of Science University of the Philippines‚ Diliman‚ Quezon City‚ Philippines Date Submitted: April 23‚ 2013 ABSTRACT Statistics is a mathematical science dealing with the collection‚ organization‚ analysis‚ interpretation‚ and presentation of data. It provides a more accurate way of expressing data rather than mere observation. This experiment used the different statistical
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In this study‚ three different methodologies have been employed for the determination of 226Ra by means of liquid scintillation technique. The first one (referred to as "Rn-LSC-28" hereafter and the tables and figures) is based on the method of Prichard and Gessel (1977) and Cooper et al. (1988) and also used by Escobar et al. (1996)‚ Zouridakis et al. (2002) and Aleissa et al. (2012). In this procedure‚ 8 mL of each standard solution was transferred to a high density polyethylene vial‚ covered with
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chapter twenty eight; Martin Luther King writes a letter in Birmingham to inform the clergymen of the reasons for his actions. Throughout this document there is a reoccurring theme of dedication‚ determination‚ and enlightenment. Martin Luther King illustrates the themes of dedication and determination when describing how Birmingham is enslaved and how he wants to be the one to change it. King is very aware that some tactics he uses are considered inappropriate‚ but he realizes what he has to do
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Name CHE 173 Sec # January 25‚ 2005 Experiment 36: Determination of the Structure of a Natural Product in Anise Oil Purpose: The purpose of this experiment is to isolate the major component of anise oil and determine its identity and structure using melting point determination and IR spectroscopy. Introduction: The major component of anise oil has the chemical formula C10H12O. This compound is said to be hydrogen deficient‚ meaning that it contains less hydrogen atoms than would be needed for
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CHAPTER 1 INTRODUCTION 1.1 Introduction of Research Steel-reinforced concrete is a widely used structural material. The effectiveness of the steel reinforcement depends on the bond between the steel reinforcing bar and the concrete. Reinforced concrete is a composite material in which concrete ’s relatively low tensile strength and ductility are counteracted by the inclusion of reinforcement having higher tensile strength and ductility. The reinforcement is usually‚ though not necessarily
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only recently‚ indigenous people were living at a lower standard than other people‚ and no-one fought for their rights. However‚ there have been significant advancements in the Aboriginal fight for self-determination‚ such as the Mabo act‚ and Rudd’s apology to the stolen generation. Self Determination is the ability for a group of individuals to make their own decisions‚ thus improving the quality of life for those individuals. Take that right away‚ and they have a significantly
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doctors be held to moral standards when practicing euthanasia‚ and if so‚ which ones? Is killing a patient any different than letting a patient die? Daniel Callahan has responded to philosophers such as James Rachels in his article‚ “When Self-Determination Runs Amok‚” and insists that recognizing the moral distinction between killing and letting die is crucial in evaluating whether euthanasia is permissible. Callahan discusses how euthanasia should not be permitted under any circumstances based on
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Chemistry Investigative study Title: Determination of amount of phosphorus content in different brands of fertilizers Objective: To determine the amount of phosphorus in different brands of fertilizers Apparatus: Beakers(250 cm3) ------------------------------------------------------------------------------- 3 Measuring cylinder(10cm3)------------------------------------------------------------------- 1 Measuring cylinder(100cm3)-----------------------------------------------------------------
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then subsequently titrated with thiosulfate solution‚”2 being the difference from the former type of iodine titration. Iodometry is more widely used‚ as in this experiment‚ because there are only a few strong reducing agents; thus few iodometric determinations. (2) As mentioned earlier‚ iodometry involves the oxidation of iodide ion; it is added in excess to the oxidizing agent being determined. This would result to the formation of iodine which would be titrated with the standard thiosulfate solution
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INTRODUCTION EDTA (H₄Y) is widely used to determine metals in complexometric (a volumetric analysis where the formation of a coloured complex is used to indicate the end point of a titration) titrations as it forms stable complexes with most metal ions. EDTA is a tetracorboxylic acid and in alkaline conditions‚ it exists as Y⁴⁻ ions‚ which form 1:1 complexes with metal ions like nickel(II) ions: Y⁴⁻ + Ni²⁺ NiY²⁻ A metal ion indicator (an organic dye which changes colour when it binds with metal
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