UNIVERSITY OF PRETORIA UNIVERSITEIT VAN PRETORIA ` DEPARTEMENT OF CHEMISTRY DEPARTMENT CHEMIE DATE / DATUM: TIME / TYD: MARKS / PUNTE: 2008.05.30 120 min 80 Outeursreg voorbehou Fakulteit Natuur- en Landbouwetenskappe CHM 171 EXAMINATION / EKSAMEN Internal Examiners / Interne Eksaminatore: External Examiner / Eksterne Eksaminator: Surname and Initials Van en Voorletters Signature Handtekening Dr FR Vogel Dr RJ Bowen Dr EMM Venter Prof WJ Schoeman Student number Studentenommer Marks
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1 CHM 1321-C Final Exam (prof. S. Gambarotta) Your Name: ___________________ April 12– 2013 Student #: ______________ 1. Solution key will be posted today on the web to day. 2. You must respond correctly to the first 41 exercises (1 mark each) to get the full mark. 3. There are 3 bonus questions at the end (4 mark each). In case of correct answers‚ each will add 4 marks to whatever you scored from the non-bonus questions. 4. Deliver the entire booklet 2 1) How many π bonds are present in
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Chapter 1: New World Encounters and the Columbian Exchange Native American Origins Environment‚ Change‚ and Human History Human evolution has proceeded against a backdrop of great Ice Ages. The latest one occurring only 20‚000 BCE years ago Human settlement in the Americas began during the Wisconsin glaciation period with migrations traversing across Beringia from northwest Asia present day Siberia in Russia across to North America. Later a warming trend nine thousand years ago BCE led
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AL FAISAL UNIVERSITY College of Science and General Studies Introduction to Chemistry‚ CHM 102 Spring‚ 2015 Course Information: Section 1: Class Time: Mon.‚ Wed.: (13 PM – 14.30 PM) Class Location: Male S1.036‚ Female S2.031 Faculty Contact Information: Instructor Name: Prof. Mohammed Zourob Office number: SG-56 Office Hours: Mon. and Wed.: (10-13) or by Appointment. E-mail: mzourob@alfaisal.edu Course Description: This single-semester‚ terminal course is designed to provide engineering
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How Much Sodium Bicarbonate Is In the Mixture? Lab Investigation 14 Chemistry 113 Lab 10/13/2011 1) Method 1: Adding acid NaHCO3 + HCl → NaCl + CO2 + H2O a) Unknown mixture of NaCl and NaHCO3 Mass of unknown mixture (NaCl + NaHCO3) | 3 g | Mass of HCl | 30 .31g | Mass of products ( NaCl + H2O ) | 26.98 g | Calculate mass of CO2 | 6.33g | Calculate mass of NaHCO3 | 12 .1 g | i) Calculation : Mass of CO2 = [Mass of unknown mixture (NaCl + NaHCO3) + Mass of HCl ] – [Mass of NaCl
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Marc DeeleyCarl Caughell‚ Kristi Kulig CHEM 126/Section 01 Dates of Experimentation: 10/12/10; 10/19/10 Title: Studying the Rate of Reaction of Potassium Permanganate and Oxalic Acid Abstract: The purpose of this experiment was to determine the reaction order and write a rate equation with respect to changes in permanganate ion and oxalic acid concentrations and to examine the effect temperature has on the rate of the reaction 1. In part one‚ the reactants potassium permanganate (KMnO4) and
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Stephanie Chane MRKG 1311.NT July 1‚ 2011 Chapter 12 3.1 & 5.1 3.1 Discuss the possible marketing implications of the recent trend toward supercenters‚ which combine a supermarket and a full line discount store. Supercenter combine a full line of groceries and general merchandise with a wide range of services‚ including pharmacy‚ dry cleaning‚ portrait studios‚ photo finishing‚ hair salons‚ optical shops and restaurants all in one locations. These superstores make it more difficult for
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Sparse Matrix Factorization Behnam Neyshabur1 and Rina Panigrahy2 arXiv:1311.3315v3 [cs.LG] 13 May 2014 1 Toyota Technological Institute at Chicago bneyshabur@ttic.edu 2 Microsoft Research rina@microsoft.com Abstract. We investigate the problem of factoring a matrix into several sparse matrices and propose an algorithm for this under randomness and sparsity assumptions. This problem can be viewed as a simplification of the deep learning problem where finding a factorization corresponds to finding
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INTRODUCTION Chemical kinetics‚ which can also be explained as reaction kinetics‚ studies the rates of chemical processes and reactions. A lot of this has to do with the speed at which a chemical reaction occurs for instance the rate at which reactants and products appear and disappear. In this case chemical kinetics goes further in depth to understand what conditions affect the rate of a given reaction. This is important because it allows scientists to determine what type of reaction can occur
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CHM1051 Chemistry CHM1051 has been designed for students who have demonstrated a strong aptitude for chemistry during secondary studies‚ eg. a VCE Chemistry Study Score >=37. On completion of this unit‚ students will have gained an understanding of how atoms and molecules interact with each other and how this affects their bonding‚ reactivity‚ 3D structure and physical properties. A number of important topics such as stoichiometry‚ intermolecular forces‚ thermodynamics‚ kinetics‚ equilibria‚
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