S.4Chemistry 2nd Term Project Be a Chemical Analyst-Analysis on ethnoic acid. Objective This experiment aims at determining the percentage by mass of ethanoic acid(CH3COOH) in a commercial vinegar using titration method. Chemical reaction involved: CH3COOH(aq) + NaOH(aq)→ NaCH3COO(aq) + H2O(l) Apparatus: An electronic balance‚ a 10.0cm3 pipette‚ a 25.0cm3 pipette‚ a pipette filler‚ a 250.0cm3 volumetric flask‚ a burette‚ stand and clamp‚ a conical flask‚ a white tile‚ 3 large beakers‚
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Purpose: In this lab‚ a mixture of naphthalene (C10H8)‚ common table salt (NaCl)‚ and sea sand (SiO2) will be separated using the separation techniques in order to demonstrate the properties of mixtures and their ability to be separated by physical means. INTRODUCTION: This lab was based on the separation of the components of a mixture. A mixture can be defined as a physical combination of two or more pure substances. Separation techniques are used to separate components that are not chemically
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Nuclear Chemistry webquest by Margaret Moore semester 1 Chemistry Part One 1) The term Half-life for a radio-active substance means the time it takes for the substance to decay while decreasing by ½. 2) Spontaneous fission is a type of radioactive decay in heavy elements with unstable nuclei being split into more stable smaller fragments 3) Two important application of neutron radiation are neutron therapy for tumors/cancer and neutron bombs for defense. 4) Ionization radiation is radiation
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Review for First Quarter Exam AP CHEMISTRY List of topics – Chapters: review‚ 1‚ 2‚ 3.1 and 3.2 1. Scientific Method 2. Significant Figures 3. Calculation with significant figures 4. Uncertainty 5. Density problems 6. Density Graphs interpretation 7. Dimensional Analysis 8. States of Matter 9. Classification of matter 10. Separation techniques 11. Structure of the atom a. historical development: Democritus; Aristotle; Dalton (postulates‚ law of definite proportions‚ law of multiple
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Exercise 5 INTRODUCTION TO STEREOCHEMISTRY I. Introduction Stereochemistry is concerned with the shapes of molecules and how the differences in shapes can effect the properties and reactions of compounds. Subtle differences in molecular shape have far – reaching consequences and it is probably the field of molecular biology that a full awareness of molecular shapes has emerged. A knowledge of the molecular shapes of such vital compounds as sugars‚ amino acids‚ and proteins is essential
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Splash Corporation It was about survival: with little capital‚ a growing family‚ and uncertain socio-economic times‚ the Hortalezas embarked on a journey of self and spirit‚ despite the uncertainties. Submitted to: Mrs. Emily Dumalag Submitted by: Group 3 Jovelyn Penit Melissa Purisima Marc Ryan Macabali Jose Ramon Estacion Sanlee Rudavites Febie John Tomulto Michael Fullon Roldan Alingasa Overview The company started in 1985‚ when the newlywed physicians pooled a grand total
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Teletech Corporation Background of the case Victor Yoarian‚ a reclusive billionaire had acquired a 10 percent stake of a telecommunications company named Teletech Corporation and has demnded two seats on the firm’s board of directors. Headquartered in Dallas‚ Texas defines itself as a “provider of integrated information movement and management.” The firm had two main business segments: Telecommunications Services‚ which provides long-distance‚ local and cellular telephone service to business
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Brunswick Corporation (NYSE:BC Brunswick Corporation (Brunswick) is a worldwide designer‚ manufacturer and marketer of recreation products‚ including marine engines‚ boats‚ fitness equipment and bowling and billiards equipment. Brunswick’s engine products include outboard‚ sterndrive and inboard engines; trolling motors; propellers; engine control systems‚ and marine parts and accessories. The Company’s boat offerings include fiberglass boats; sportfishing convertibles and motoryachts; offshore
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Introduction Methyl Salicylate has been used for a long time for its pleasant odour and flavour. The objective of this experiment was to carry an organic synthesis; the preparation of salicylic acid from methyl salicylate. To do an organic synthesis‚ it is needed to chemically modify the molecules of another compound to end up with the desire compound. Methyl salicylate is the major constituent of wintergreen oil‚ which is why it was used in this experiment as the starting material. The new technique
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products shows how profitable the products are after deducting all cost. However‚ it is important to find the appropriate method of overhead cost allocation. In Sippican’s case the traditional accounting method is used‚ which does not reflect the real resource usage of the different product lines. The correct method in this case would be to apply the time-driven ABC approach for cost allocation. Such method apart from showing the actual profitability after all cost deductions also depicts the differences
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