Dina Karina Lab performed: 1/22/15 Chem 2203-012 Report due: 1/29/15 TA: Kavitha Akula Experiment 4A: Determination of a Partition Coefficient for Benzoic Acid in Methylene Chloride and Water‚ and Experiment 4B: Solvent Extraction I: Acid-Base Extraction Using the System Benzoic Acid‚ Methylene Chloride‚ and Sodium Bicarbonate Solution Objective The purpose of this experiment is to familiarize oneself with the general procedures determining a partition coefficient
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Lab Assessment Questions & Answers 1. What is the significance of creating Groups and adding Users to Groups? Explain. It is important to put user in groups because it is easier manager there permissions. Instead of assigning permissions to a new user every time someone is hired‚ you would just add them to the groups they need. 2. Given a scenario where there are five (5) database administrators that may periodically need access to a given system. Discuss a concept to better manage these administrators’
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extraneous variables by using random assignment to experimental conditions and sometimes also by incorporating direct control and/or blocking into the design of the experiment. Each of these strategies—random assignment‚ direct control‚ and blocking—is described as follows; A researcher can directly control some extraneous variables. In the calculus test example‚ the textbook used is an extraneous variable because part of the differences in test results might be attributed to this variable. We could
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VARIABLE COSTINGMorenike Onibon Liberty University Abstract Determining the actual valuation of manufactured assets has always been a major problem in the accounting field. The real controversy exist in the decision regarding which costs are relevant to future periods‚ and thus should be included in assets valuation‚ and which should not be charged against net income. An understanding of the relationship between costs‚ volume‚ and profit‚ enables management to set more realistic objectives for
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Accounting for decision making – final assigment Lecturer: Pham Quang Huy Page 1 ACCT 601 UBIS INTAKE 2012 - 2013 The University of Business and International Studies Geneva‚ Switzerland. PROBLEM Part 1: Optional Section In this part‚ the learners have to choose four of eight questions for answering. If you give the right responses‚ you will obtain 2.5 marks per one statement (i.e. this part is for 10 marks). 1. Why is adherence to ethical standards important for the smooth functioning
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Table of Contents 1. Abstract 2. Introduction 3. Equipment 4. Procedure 5. Discussion/ Schematics 6. Conclusion 7. Reference 8. Appendix Abstract: This experiment is intended to introduce the basic concepts of the operational amplifiers and to help us better understand the relationship between the resistances and the amplifier gain. The main experiment focused on op-amps of which we have two types‚ inverting and non-inverting. With the inverting op-amps there is no current
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Title: Observation of Macroscopic Chemical Changes‚ Alice Kimbrell‚ Chemistry 101-DS01:74589‚ 5/31/2013. Purpose: In this lab‚ I will observe macroscopic changes that occur when mixing together certain chemicals and household cleaners. The mixing of the chemicals provided with each other and with acid/base indicators demonstrates how matter can change‚ and how chemistry can be seen with the naked eye. By mixing household cleaners with an acid/base indicator I hope to demonstrate how these
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Worksheet Fill in the following tables: Type of Microscopy State of the Cell (live‚ dead‚ both) Limit of General steps for resolution sample preparation/ fixation Advantage of Technique Phase contrast light microscope Amplitude contrast microscope Optical tweezers Fluorescence/ Confocal Microscopy Transmission Electron Microscope (TEM) Scanning Electron Microscope (SEM) Scientist Robert Hooke Antonie van Leeuwenhoek Ernst Karl Abbe Fritz Zernike Shimomura‚ Chalfie‚ and Tsien Ernst Ruska Schleiden
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Figure 1: The reaction rates of enzyme-catalysed reactions of hydrogen peroxide into diluted water depending of the varying percentage concentrations of catalase. Mean rates (±SE) of 5 separate experiments (n=5) are shown. Line of best fit (y = 0.0002x + 0.0038 R² = 0.9154) is presented using the trend line function in Excel. Figure 2: Absorbance readings of different concentrations of BSA. Individual data is presented of one group is presented (n=1). Line of best fit (y
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figure in a woman’s childhood years can have a huge effect on what kind of woman she will become. It’s a proven fact that 67% of women who grow up without having a mother figure in their daily life‚ tend to mature into strong‚ self sufficient‚ and independent women (Sparks 321). In other words‚ women who grow up in stable households‚ complete with both mother and father figures‚ mature into being more so often then not‚ dependant women. These "dependant" women aren’t constantly relying upon others
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