CH 127 – Chem 2 Lab Determination of an Equilibrium constant Goals The purpose of this experiment is to determine the equilibrium constant for the reaction Fe3+(aq) + HSCN(aq) –>FeSCN2+(aq) + H+(aq). The equilibrium constant expression Kc for Reaction is kc=FeSCN2+[H+]Fe3++[HSCN] Procedure *Preparation of the Beer’s law plot Prepare five solutions of FeSCN2+(aq) of known concentrations between 1x10-5M and 1x10-4M by diluting various volumes of 4.62x10-4 HSCN. Calculate the Final concentration
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Eric Wu 117 Experiment 1.6: Determination of Density Abstract: The purpose of the experiment was to determine if density is an intensive or extensive property of matter. The experiment proves that density is an intensive property. The density of an object remains the same no matter how much of it is present. The density is an intensive property because mass and volume changes at the same rate. Introduction: This experiment was designed to determine if density is an intensive or extensive
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pth dFE046245 ISSN 0335-3931 European standard French standard Steels NF EN ISO 2639 February 2003 Classification index: A 04-202 ICS: 77.040.99 Determination and verification of the depth of carburized and hardened cases F : Acier — Détermination et vérification de la profondeur de cémentation D : Stahl — Bestimmung und Prüfung der Einsatzhärtungstiefe © AFNOR 2003 — All rights reserved French standard approved by decision of the Director General of AFNOR on January 20
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------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- EXPERIMENT NO. 4 ------------------------------------------------- COLORIMETRIC DETERMINATION OF pH ------------------------------------------------- Abstract This experiment examined the result of the various color indicators combined with different buffer solution‚ thereby testing the precision and accuracy of determining the pH value
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24‚ March 2013 Moral Dilema Determination inspired many of the suffering persevere in their rescue efforts which eventually paid off when they escaped. Each person must make difficult judgment in the course of everyday life. Decisions that seem trivia at the time‚ sometimes the choice is better to meet the expectations of others or to meet the expectation of the conscience like in “alive”‚“Thirty eight who so murder didn’t call the police”and “shooting an elephant”
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Determination of the Rate Constant for a Chemical Reaction Department of Chemistry Abstract This experiment was performed to determine the rate constant k‚ for hydrolysis of tertiary butyl chloride to tertiary butanol. The solvent system for this reaction is 45% isopropyl alcohol and 55% water. The rate of hydrolysis of t-butyl chloride is measured by the decrease in the concentration of this reagent with time. The rate of decomposition of t-butyl chloride must be equal to the rate of formation
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Torian Vaughn Jr. Prof. Ashkevron ENGL111 22 Sept. 2013 Don ’t Change A person’s perception of anything is always influenced by their experiences. Alice Walker‚ the writer of “Beauty: When the Other Dancer is the Self”‚ is no different in regards to her perception of beauty. Walker uses various stylistic elements throughout her writing to convey her shifting outlook toward her own beauty. She also employs various rhetorical strategies in order to deliver a clear and luring story that keeps
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* Short Run Costs A period of time in which the quantity of some inputs cannot be increased beyond the fixed amount that is available. For example‚ what quantity of inventory to order is a short run decision. Whether or not to build a new factory would be considered a long run decision. 1. Total fixed Coast The total fixed cost curve graphically represents the relation between total fixed costs incurred by a firm in the short-run production of a good or service and the quantity produced
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Phuong Pham Prof. Johnson Lab 3 Gravimetric determination of Calcium as CaC2O4.H2O Feb‚ 27‚ 2014 I. Objective: The purpose of this lab is to determine how well gravimetric method measures the calcium level in a solution of known calcium concentration. II. Method: a) Overview: In this lab we will prepare 25 mL known concentration Calcium solutions. Then we will use Gravimetric method to determine the concentration of Calcium in each solution to figure out how well this method is. As we know
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COMMA SPLICES & RUN-ON SENTENCES The comma splice and run-on (or fused) sentence are major punctuation errors that can commonly show up in your writing. What do these terms mean? How can you correct or avoid these errors? ► A comma splice occurs when only a comma separates two independent sentences. ► A run-on (or fused) sentence occurs when no punctuation at all separates independent sentences. Let’s start with two simple sentences: Tony is dishonest. He steals hubcaps for a living. Even though
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