Abstract To determine the rate law with respect to bleach and blue dye‚ a series of graphic and algebraic manipulations were done on the data obtained in the kinetic trace experiment in order to determine the different components that made up the rate law. Using absorbance spectroscopy to monitor concentration over time‚ rate order of the dye was found to be 1st order through the integrated rate law and through the proportionality method; the order of the bleach was also determined to be 1st order
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but pay attention to typesetting and make sure that words/numbers are not split between 2 lines‚ this will lose marks. Absorbance of blank must be subtracted from values for unknown as they also contain non-specific absorbance. Many of you wrote dilutions incorrectly eg 1:2. The symbol : means ratio this actually means 1in 3. Either write as 1in 2 or 1:1 Never average absorbance-it’s not good practise (except for
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Laboratory 9 Lab title: Conductivity of solutions and Household Items PURPOSE: To understand the compounds that dissociate (break into ions) when dissolved in water. Determine ionic compounds are electrolytes. To identify solutions as electrolytic and non-electrolytic‚ and to identify variations in conductivity among electrolytes. Substances that are capable of conducting an electric current in solution are known as electrolytes. Substances that do not conduct an electric current
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LABORATORY DOCUMENTATION REQUIRED FOR DATA EVALUATION USEPA Region IX Quality Assurance Office San Francisco‚ California R9QA/004.2 AUGUST 2001 CONTENTS 1.0 2.0 Introduction General Documentation Requirements 2.1 Data Package Format 2.2 Case Narrative 2.3 Chain-of-Custody 1 2 2 2 3 3.0 Organic Analyses Documentation Requirements 4 3.1 Summary of Environmental Sample Results 4 3.2 Summary of QA/QC Sample Results 4 3.2.1 Instrument Calibration 4 3.2.2 Method
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translation models‚ and the imbalance/uncertainty model of the Stroop effect were investigated. Two participants received four weeks of key press practice using standard Stroop stimuli. Tests of RT to standard Stroop‚ Single colored letter‚ and Stroop dilution stimuli were conducted before and after each week of practice using both key press and vocal responding. After the final practice they also were tested on reverse Stroop stimuli. The results support response competition and partially support response
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and recorded in table 9. Once this step was complete‚ 2.5 mL were removed from the solution‚ and diluted in the volumetric flask. The steps were then repeated using different amounts of the diluted solution each time . Data Table 9:Dilution Series Dilution Volume (mL) Mass (g) Density (g/mL) Initial Concentration (M) Volume Transferred (mL) Final Concentration (M) 0 25 mL 27.4 1.096 0.9661 0 mL 0.9661 1 25 mL 24.6 0.984 0.9661 2.5 mL 0.09661 2 25 mL 24.6 0.984 0.09661 4.5 mL 0.01739 3 25
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in order of decreasing liquidity preference. Fully-diluted: calculation of the shareholder’s percent ownership after all possible shares have been issued. Dilution: occurs for any event that requires the company to issue more shares; equity stake decreases in proportion to the percent of the company new investors buy Price-based dilution: occurs when both the percent ownership and the value of said ownership
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VARYING EFFECTS OF ENZYME CONCENTRATION ON REACTION RATES OF MALATE DEHYDROGENASE CELL BIOLOGY 13 NOVEMBER 2007 Enzymes are biological catalysts. They are proteins that speed up reactions with low concentrations. These enzyme proteins are made up of linkages of amino acids. The links coil‚ and coil again forming a tertiary structure. This structure has a groove in it called an active site. The active site is
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Gel Filtration Gel filtration is a non-adsorptive chromatography technique that separates molecules on the basis of molecular size. Desalting and buffer exchange are two special examples of gel filtration that are widely used in many downstream bioprocesses. Desalting is used to completely remove or lower the concentration of salt or other low molecular weight components in the sample while buffer exchange replaces the sample buffer with a new buffer. Gel filtration is one of the easiest chromatography
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Disinvestment 1) What Does Disinvestment Mean? Ans) The action of an organization or government selling or liquidating an asset or subsidiary. Also known as "divestiture". OR A reduction in capital expenditure‚ or the decision of a company not to replenish depleted capital goods. 2) Why disinvestment in India? In India for almost four decades the country was pursuing a path of development in which public sector was expected to be the engine of growth. However‚ the public sector had overgrown
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