"Gravimetric determination of sulfate lab" Essays and Research Papers

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    1. The Concept of Motivation Each concept or idea has its own history determined by the general evolution of human thought. For many years‚ the understanding of the term and the research on motivation were dominated by the so-called drive reduction theories. Psychologists identified a large number of human needs (both biological and psychological ones)‚ all of them causing inner tensions‚ which had to be released in one way or another. In 1964‚ Atkinson (quoted in Williams and Burden‚ 1997: 113)

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    Organic Lab

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    will broaden range &may increase melting point Lab Questions 1. Define the following A. Melting point B. Intermolecular forces C. Hydrogen bonding 2. Arrange the following IMF according to there strength Dipole-Dipole interaction forces‚ Hydrogen bonding‚ Van der Waals forces 3. How does the atmospheric pressure affect the melting point? 4. What is the purpose of determining the melting point in this lab? 5. Why is this method not used for finding the melting

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    oxidation of alcohol lab

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    methoxybenzyl alcohol to methoxybenzaldehyde‚ using sodium hypochlorite as the oxidizing agent and tetrabutylammonium hydrogen sulfate as the phase-transfer catalyst. Monitor the progress of the reaction by thin-layer chromatography. BACKGROUND REQUIRED You should be familiar with extraction‚ evaporation‚ and thin-layer chromatography techniques. You may wish to review the TLC lab from earlier in the semester! BACKGROUND INFORMATION In organic molecules‚ carbon may exist in several different oxidation

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    Functional Currency Determination Case 10/10/2011 ABSTRACT In the dynamic global market‚ companies of all sizes‚ whether small‚ medium or transnationals interact with foreign companies and in most cases operate with currencies that are different from those that they commonly use. Foreign companies use foreign currencies for their expenditures‚ hedging strategies‚ and investing and financing activities. As a result these business activities must be reflected on the financial statements in the

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    Biology Lab

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    ..................... 95 2. Lipid metabolism ................................................................. 101 3. Protein metabolism .............................................................. 104 V. Titrimetric methods of quantitative determination‚ Preparation of varioussolutions used in Titrimetric analysis .............. 109 VI. Liver function tests

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    XAVIER UNIVERSITY – ATENEO DE CAGAYAN COLLEGE OF ENGINEERING ACTIVITY NO. 3 DETERMINATION OF REYNOLDS NUMBER Date Performed: December 09‚ 2014 ChE 34 A: UNIT OPERATIONS LAB Submitted by: Ephrem John O. Agorob 201030788 Jill Carlotha P. Cajote 201030149 Jacqueline Faye D. Lim 201030739 Melody Kimberly D. Pitoc 201014465 Instructor: Engr. Edwin Richard R. Ortiz Date Submitted: December 16‚ 2014 1 REYNOLDS NUMBER Experiment 3 ABSTRACT: The experiment focuses on types of flow of liquids

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    Double Replacement Lab

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    Double Replacement Reactions Lab Pre-Lab 1. If a solid‚ a gas or a weakly ionizing compound such as H2O formed‚ then a reaction has occurred. 2. The formation of a solid‚ the formation of a gas and the formation of a weakly ionizing compound are the driving forces that control a double replacement reaction. 3. a. Balanced equation: CaCl2 (aq) + NaPO4 (aq) Ca3(PO4)2 (s) + 6NaCl (aq) Ionic equation: 3Ca2+(aq) + 6Cl-(aq) + 6Na+(aq) + 2PO43- (aq) Ca3(PO4)2 (s) + 6Na+ (aq)

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    Stiochiometry Lab

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    be produced from a balanced equation with some known quantitative physical properties. Stoichiometry was first introduced to chemistry by Jeremias Benjamin Richter from Germany in the late 18th century. Richter carried out some of the earliest determinations of the quantities by weight of acid-base saturation and determined that it would take equivalent amount of different bases to saturate a particular acid of the same quantity. This concept has made important contribution to chemistry. Research

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    Wicksell’s theory and explanation Knut Wicksell is known for his theories on interest and prices‚ and his contribution to the formation of what is now called macroeconomics. Throughout his career‚ Wicksell was an advocate of the quantity theory. In the book Lectures in Political Economy‚ volume 2‚ Wicksell sketched out his version of the quantity theory of money. Before Wicksell‚ the standard view of the quantity theory was that there is a direct effect on prices from an increase in the money supply

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    Silver Chloride Lab Report

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    Purpose: The Purpose of this lab is to utilize‚ demonstrate and understand the various techniques and procedures used to gravimetric labs. For this particular lab we will utilize our scientific knowledge of related to gravimetric procedures to find the chloride content in an unknown soluble salt. Theory: Using our developed knowledge of the conservation of mass‚ solubility and precipitation it is possible (with some degree of error) to know the content of chlorine in a particular salt by dissolving

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