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
Premium
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
Premium Question Answer English-language films
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
Premium University Academic dishonesty Final examination
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
Premium Hydrochloric acid Sodium carbonate Sodium bicarbonate
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
Premium Rate equation Reaction rate Chemical reaction
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
Premium Reaction rate Chemical reaction Chemical kinetics
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‚
Premium Chemical kinetics Reaction rate Chemical reaction
Vicente Viloria CHM 130 LL Section 22258 Lab 12: Introduction to pH‚ Household Products and Buffers 12/9/14 Introduction In this experiment the students will be determining the pH of household products along with other solutions using several different indicators as well as a pH meter. The experiment also has the student determining what the buffer solution is in an aqueous solution. The student will also be testing the pH of milk of magnesia and will see how it affects the stomach acid. Lastly
Premium PH Acid PH indicator
CHM130 Lab 7 Determining the Formula of a Compound A. Data Table (show completed data table here) (12 points) |Measurements |Mass (in grams) | |Mass of empty 100 mL beaker |55.45 g | |Mass of zinc metal
Premium Ion
CHM113 summer 2014 Name: __________________________ EXAM 4 SHOW YOUR WORK 1) Of the molecules below‚ the bond in __________ is the least polar. A) HBr B) HI C) HCl D) HF E) H2 2) Ethanol (C2H5OH) melts at -114°C. The enthalpy of fusion is 5.02 kJ/mol. The heat capacity of solid and liquid ethanol are 0.97 J/g-K and 2.3 J/g-K‚ respectively. How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -135°C to liquid ethanol at -50°C? A) 207.3 B) -12.7 C) 6.91 D) 4192 E)
Premium Molecule Chemistry Melting point