Limiting Reagent and Percent Yield Aim To determine the limiting reagent between the reaction of lead (II) nitrate and potassium iodide. To determine the percent yield of lead (II) iodide. Date Started: 13/4/12. Finished: 19/4/12. Data collection and processing Measurements: * Amount of distilled water: 75.0ml ± 0.5ml. * Mass of watch glass: 31.65g ± 0.01g. * Mass of watch glass + potassium iodide: 32.45g ± 0.01g. * Mass of potassium iodide: 0.8g ± 0.02g. * Mass of watch
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Synthesis of Butyl Benzoate Using Phase Transfer Catalysis The objective of the experiment is to synthesize the butly benzoate by nucleophilic substitution and characterize it by IR spectroscopy. The percent yield of the final product is determined after the synthesis. Procedures: 2.0 mL of 1-bromobutane‚ 3.0 g of sodium benzoate‚ 5.0 mL of water‚ 4 drops of Aliquat 336‚ and a boiling stone were placed in a 50mL round-bottomed flask. The reaction mixture was refluxed for 1 hour and the flask
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animal‚ his deception of his neighbours 3. The androids attempts to escape decommissioning 4. The destruction of the earth due to war. Body Paragraph: Point: Proof: Explanation Summary: Conclusion: Restate Thesis Statement: Restatement of Points of Proof: Concluding Statement: Body Paragraph: Point: Proof:
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Circulatory physiology Suggested reading Chapter 8 Topics to be covered Roles of circulatory system Design of circulatory systems Elements of circulatory systems Pumps Blood vessels Control of blood pressure and flow Adjustments for exercise BIO 3302 – SLIDE #1 Roles of the circulatory system Time to 95% equilibration of O2 by diffusion What animals need a circulatory system‚ and why? Once a circulatory system is in
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EXPERIMENT 1: TITLE: ISOMERISM AND KINETICS IN COORDINATION CHEMISTRY OBJECTIVE: 1. To prepare and study the kinetics of the interconversion of some of the isomers of a typical coordination compound. INTRODUCTION: Isomerism played a central role to establish the basic concept in coordination chemistry while reaction kinetics of coordination compound is known as the area of continuing intense research activity. The mechanism of the reactions of coordination compounds relevance
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is weight‚ modification in masses added is also done. Once equilibrium is achieved‚ or when the beam is not moving at a horizontal position‚ we can calculate for the unknown forces applied through the utilization of this principle. We balance the system given the ample forces acting on it. In general‚ application of Newton’s Second Condition of Equilibrium is applied here. By applying it‚ we could get the magnitude of one force acting on it‚ considering the other forces of known magnitudes. Thus
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Abstract: This report presents the reason why the ocean does not freeze in the winter. Since the ocean consists of salt water‚ an experiment was done to test the effect of freezing on salt water compared to pure water. The experiment was conducted three times in order to obtain accurate results and eliminate errors. In addition to the salt and pure water experiment‚ a variation of this experiment was created to test other options. In the variation experiment the effect of freezing on sugar water
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planning and coordinating activities of the organization. | C. | A means to anticipate problems. | D. | An ethical framework for decision-making. | E. | A basis for motivating employee behavior. | | 4. | Traditional financial control systems have recently been criticized because: A. | They use flexible‚ not static‚ budgets. | B. | They generally lead to goal-congruent behavior on the part of managers. | C. | They focus more in improving basic business processes than short-term
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Overview of the Skeletal System Laszlo Vass‚ Ed.D. Version 42-0018-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Purpose
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Potato Osmosis Biology SL - ATh INVESTIGATION “Potato Osmosis” INTRODUCTION Osmosis is a process that occurs at a cellular level that entails the spontaneous net movement of water through a semi-permeable membrane from a region of low solute concentration to an area of high solute concentration in order to equalize the level of water in each region. Involved in this process are hypotonic‚ hypertonic and isotonic solutions. A hypotonic solution is one with a lower osmotic pressure‚ indicating
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