Anna Powell 2nd I.Title: Acid-Base Titrations AP Chemistry Laboratory #6 II.Purpose: The purpose of this experiment is to standardize a sodium hydroxide solution and use the standard solution to titrate an unknown solid acid. The equivalent mass of the solid acid will be determined from the volume of sodium hydroxide added at the equivalence point. The equilibrium constant‚ Ks‚ of the solid acid will be calculated from the titration curve obtained by plotting the pH of the solution versus
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UFOs‚ Underground Bases‚ and Government cover-ups Julian Mercado October 1‚ 2010 UFO‚ Underground Bases‚ and Government cover-ups Introduction UFOs have been seen by people all over the world. People of different cultures and ethnicities have different names for these unknown craft. In Spanish it is “objeto volante no identificado”‚ and in German it is actually UFO. Regardless of what race you are‚ UFO means the same thing‚ “Unidentified flying Object”. Let me be clear on this. It means
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Introduction 1 2. What is base 5 number 1 3. How to read a Multiplication TABLE 2 4. How to read an Addition TABLE 3 5. Process of multiplying two base 5 number 3 APPENDIX A: LIST OF FIGURES 6 APPENDIX B: REFERENCE PAGE 6 ii PREFACE Thanks the help of my professor Nancy Acemian and the students who contribute their ideas when I write this instruction. Wenjun zhu February 2008 iii 1. Introduction In reality‚ people use base 10 numbers quite often
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Acid-Base Titrations A Titration of Potassium Hydroxide Phthalate and Sodium Hydroxide Hanna Piper Department of Chemistry‚ SUNY College at Brockport‚ Brockport‚ NY 14420 Chemistry 205.06 Abstract Titrations are used to find the molarity of an unknown solution. A titration begins with an analyte and titrant being used to measure the unknown molarity of the analyte. In the following experiment‚ sodium hydroxide was used as the titrant and potassium hydroxide phthalate was used as the
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STANDARDIATION OF ACID AND BASE Eunice Ivy B. Gamboa ABSTRACT Solutions of known concentration are prepared by dissolving measured masses of standard acids in distilled water. The concentrations of unknown solutions of sodium hydroxide are determined by titration. An acid solution reacts with a base solution in a "neutralization" reaction. Titrations permit the concentrations of unknown acids/bases to be determined with a high degree of accuracy. In order to analyze unknown acids/bases‚ we must have a "standard"
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GOTTHARD BASE TUNNEL‚ SWITZERLAND 1. INTRODUCTION Currently under construction to stretch a record length of 57 km‚ the Gotthard Base tunnel located in Switzerland spans the north of Europe‚ spanning through the Swiss Alps to the south of Europe. This railway tunnel has been designed to bypass the inefficient route of windy roads and cutting down travel time. The Gotthard Base tunnel consisting of twin tunnels is connected by cross passages at every 325m. The twin tunnels have been constructed
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from other sources. Charisma and having personal appeal are sources of power too. Power can also be developed by becoming and expert or by performing critical role for the firm. Bases of Social Power Bases of power refer to the methods that managers and leaders utilize to influence their employees. When examining bases of power‚ the concept of authority must also be considered. These two are interconnected attributes tied to the behavior of superiors over subordinates. In their article‚ "Are There
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Leadership and Power Base Development: Using Power Effectively to Manage Diversity and Job-Related Interdependence in Complex Organizations Barton J. Michelson Mention the word power and what comes to mind? Power is evil‚ corrupt‚ self-serving‚ manipulative‚ hurtful‚ and possibly “America’s last dirty word.”1 These words speak to the dark side of power. There is‚ however‚ a positive face to addressing power acquisition‚ power-base development‚ and power use. The purpose of this article is to consider
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Five Bases of Power Maria Mayorga BCom230 November 28‚ 2011 Jay Johnson Five Bases of Power Power is said to be ability of one person‚ group‚ or organization to control another person‚ group‚ or organization. Power is also refer to when one individual makes another do what the other wished through fear‚ force‚ persuasion‚ or reward. For example someone may be powerful because he or she could fire or assign a task someone does not like. Other could be powerful by having the ability to
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Properties of Acids and Bases Diagram: A B C D E F Bromothymol Blue Universal Indicator Phenolphthalein Litmus Paper Analyze: 1) F‚ C‚ D‚ B‚ A‚ E 2) D is neutral because it turned to the colour of green when it came in contact with the indicator Bromothymol Blue. The acid or base is green between 6.0-7.6 pH. 3) Solution E is more alkaline (more basic) than solution A because when E came into contact with the indicator Bromothymol Blue it turned
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