Spectrophotometric Determination of an Equilibrium Constant. Abstract: The report presents determination of equilibrium constant for the formation of a complex ion FeSCN2+. This was accomplished using a colorimeter to measure absorbance of some known concentration solutions in order to generate the calibration curve. The equation of the graph was used to compute the equilibrium concentrations of the reactants and products‚ needed to calculate the equilibrium constant for the reaction.
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The Concept of Equilibrium and the Equilibrium Constant + What is equilibrium? A state of balance It can be static (like tug o war) It can be dynamic‚ like cars moving across a bridge‚ and like most of the reactions we will be studying + Chemical Equilibrium Occurs when opposing reactions are proceeding at equal rates Rate at which products form is equal to the rate at which reactants disappear Have the illusion that the reaction has stopped +At equilibrium‚ the concentrations
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Spectrophotometric Determination of an Equilibrium Constant Introduction: In this experiment‚ you will study the reaction between aqueous iron (III) nitrate‚ Fe(NO3)3‚ and potassium thiocyanate‚ KSCN. They react to produce the blood-red complex [Fe(SCN)]2+. Fe3+ + SCN- ( [Fe(SCN)]2+ The equilibrium constant expression may be expressed as: K = [pic] You will prepare a series of standard solutions that contain known concentrations of [Fe(SCN)]2+ and will determine
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Usually the power of the present societies is tripartite. The power is divided into an executive‚ a legislative and a judicative part. As though is it also in the science fiction film Equilibrium written and directed by Kurt Wimmer. After World War III only one civilised stronghold is left‚ the city-state Libria. The city-state contains the same structure of state as we know it today from totalitarian states. However the power of state is tripartite and Preston is part of the executive apparatus
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DATE PERFORMED: JULY 20‚ 2007 SPECTROPHOTOMETRIC DETERMINATION OF EQUILIBRIUM CONSTANT FOR A REACTION ABSTRACT UV-VIS spectrophotometry is one of the most widely-used methods for determining and identifying many inorganic species. During this experiment‚ this spectrophotometry was used to determine the equilibrium constant‚ Keq‚ of the Fe3+(aq)+SCN-(aq)↔ FeSCN2+(aq) reaction. By determining the amount of light absorbed‚ the concentration of the colored FeSCN2+ solution was also quantitatively
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General Chemistry II Determining of the equilibrium constant for the formation of FeSCN2+ Introduction The objective of this experiment was to determine the equilibrium concentration and then determine Kc. A dilution calculation was formed to determine the concentration of SCN- and Fe(SCN)2+. Each cuvette was filled to the same volume and can be seen in table 1. Then the absorbances were recorded from each cuvette and can be seen in table 1. A Beer’s law plot was made from the data that was recorded
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single or multivalued mappings is obtained as a corollary of Nash equilibrium existence in finitely many players games. ı Copyright © 2006 Juan Pablo Torres-Mart´nez. This is an open access article distributed under the Creative Commons Attribution License‚ which permits unrestricted use‚ distribution‚ and reproduction in any medium‚ provided the original work is properly cited. 1. Introduction In game theory‚ the existence of equilibrium was uniformly obtained by the application of a fixed point theorem
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Experiment 19 - Determination of the equilibrium constant for the reaction Fe3+ (aq) + SCN( (aq) = FeSCN2+ (aq) Object: To determine the equilibrium constant by a colorimetric method Theory: Colorimetric methods of analysis are usually applied to the determination of small concentrations of either inorganic or organic materials in a solution. The constituent sought must be coloured or must be capable of reacting with a reagent to produce a substance having a suitable colour. Beers Law‚ which
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Nash Equilibrium and Dominant Strategies Nash Equilibrium is a term used in game theory to describe an equilibrium where each player’s strategy is optimal given the strategies of all other players. A Nash Equilibrium exists when there is no unilateral profitable deviation from any of the players involved. In other words‚ no player in the game would take a different action as long as every other player remains the same. Nash Equilibria are self-enforcing; when players are at a Nash Equilibrium they
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involves the study of: 1. THE CHEMICAL INDUSTRY 2. CHEMICAL EQUILIBRIUM 3. PRODUCTION OF SULFURIC ACID 4. PRODUCTION OF SODIUM HYDROXIDE 5. SOAP & DETERGENTS 6. THE SOLVAY PROCESS FOR Na2CO3 ...all in the context of the applications of Chemistry in human society. 1. THE CHEMICAL INDUSTRY The “Invisible” Industry Most people are familiar with some aspects of the production and manufacture of the many goods we need and use every day‚ but do not understand the vast chemical industry which underlies it
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