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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spread wings in the corner and a black raven hovering over the couch. Marion enters the room and takes her place on the couch under the raven while Norman sits across the intimidating glare of the owl and under another
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Before the French Revolution‚ France was ruled and governed by the king‚ his Grand Council of ministers‚ and 13 courts called parliaments. King Louis XVI ruled by “divine right‚” believing that he had been put on the throne by the grace of God. France then was one of the most powerful and wealthiest countries‚ and had a strong army‚ and even stronger cultural influence. (Plain‚ 5) Louis XVI and his wife Marie-Antoinette were shielded from the daily lives of the ordinary people in France. When Louis
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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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French Revolution There were many factors that contributed to the French Revolution. First of all was the greatest percent of the population‚ the commoners‚ had the least amount of power and land. This laid the foundation for social unrest which is necessary for a revolution. Second‚ the French economy was very weak due to France’s involvement in the American Revolution. In addition to the economic problems that the American Revolution caused‚ it also put Enlightenment ideas into the minds
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DBQ The French Revolution The French Revolution is considered a major turning point in world history. In 1789-1814 which included Napoleon’s reign‚ this revolution led to major changes in France and other nations and regions around the world. These changes both helped and changed society for better and for worse. The main source for the French Revolution was Louis XVI and his over control of everything. King Louis XVI was
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