solution on the rate of the reaction when reacting with dilute hydrochloric acid. It is hypothesized that as the concentration of the sodium thiosulfate solution increases‚ the rate of the reaction will also increase proportionately. Variables The independent variable is concentration. This will be varied by increments of 10mL (10mL to 50mL) and distilled water will be added accordingly to maintain a constant volume of 50mL. The dependent variable is the rate of the reaction. This will be indirectly
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Lab #5 Chemical Reactions & Balancing Equations Objectives Observe and classify several chemical and physical changes. Give evidence for the occurrence of a chemical reaction. Write a balanced equation for a chemical reaction. Identify a reaction as a combination‚ decomposition‚ replacement‚ or combustion reaction. Background Physical properties can be observed without changing the chemical composition of the substance. Common physical properties that can be measured without changing the chemical
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Volcker Rule Restrictions on Proprietary Trading: The Impact on USMediumCapitalization Banks Abstract The paper aims tofind out the effect of the announcement of the Volcker rule on the stock returns of commercial banks with medium capitalization‚ defined as 500‚000 million to 5 billion. Different from our hypotheses‚ mid-cap banks experienced positive abnormal returns (ARs) and cumulative average abnormal returns (CAAR) as a result of the release of the Volcker Rule. Theinterpretation
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Experiment 5: Shifting Equilibrium A solution is in equilibrium when the rate of forward reaction and the rate of reverse reaction are equal. This equilibrium may be disturbed when the concentration of the reactants‚ the concentration of the products or the temperature is changed. If the process involves gases‚ a change in pressure can also affect the position of equilibrium. The concept behind this is Le Chatelier ’s Principle which states that when a system is disturbed through application
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RULES GOVERNING SHIPMENT BY SEA: HAGUE RULES‚ HAGUE-VISBY RULES AND HAMBURG RULES The nature of the Hague-Visby Rules was discussed by the House of Lords in The Hollandia [1983] AC 565 (HL). The plaintiffs (shippers) shipped a piece of road-finishing machinery on board a Dutch vessel‚ ‘The Morviken’‚ belonging to the defendant carriers to Bonaire in the Dutch West Indies. The bill of lading issued in England limited the carriers liability to Dutch Florins 1‚250 ($250) which was less than the 10
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Unit 2 Online Simulation-II (50 points) VLab: Precipitation Reactions: Data & Observations Navigate to: http://www.sascurriculumpathways.com/portal/#/search?searchString=&searchSubject=3&searchCategory=20 Enter the following username: job5circle (No password required) Enter 867 GO There are thirty-five combinations of aqueous solutions for you to investigate. (Note Table 1 on the Data Sheet.) Some of these combinations will produce precipitates; others will not. Step-by-step
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Coke and Mentos‚ you get an explosive result. The Diet Coke shoots out of the bottle like a miniature sticky geyser. This reaction is so powerful that it could actually propel a rocket‚ but what is the science behind this geyser-creating reaction? (Hiskey) This reaction is caused by the ingredients in the Mentos and Diet Coke. The structure of the Mentos allow carbon dioxide bubbles to form extremely rapidly. When this happens‚ you get the physical reaction of the coke exploding out of the bottle
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George Elton Mayo: The Hawthorne Experiment George Elton Mayo: The Hawthorne Experiment Purpose The purpose of this paper is to explore the management theory of George Elton Mayo and how it applies to the current status of management in business today. This will include the examination of the behavioral aspect of management by studying Elton Mayo ’s Hawthorne Experiment and its conclusions. Introduction George Elton Mayo was born the second child of an
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General Chemistry II Lab (CHEM 1106) Determination of the Solubility Product Constant of a Salt Date Performed: March 1‚ 2011 INTRODUCTION If solid KHC4H4O6 is added to a beaker of water‚ the salt will begin to dissolve. The amount of solid diminishes‚ and the concentrations of K+(aq) and HC4H4O6-(aq) in the solution increase. When no KHC4H4O6 dissolves‚ the concentrations of K+(aq) and HC4H4O6-(aq) will not increase further and any additional KHC4H4O6 added after this point will remain
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Calorimetry Experiment Purpose: The objective of this lab is to determine the enthalpy change for NaOH(aq) + HCl(aq) NaCl (aq) + H2O(l) Procedure: Before measuring the enthalpy of acid base neutralization‚ my partner Brian and I determined a calorimeter constant‚ using a homemade polystyrene calorimeter. With the following formula and data: qhot= cm (Tf-Ti) qcold=cm(Tf-Ti) SYSTEM DATA SURROUNDINGS DATA Water cold Mass: 50mL Water hot Mass: 50mL C=4.18 C=4.18 Ti=20 C Ti=31
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