chemistry. In a titration experiment‚ a known volume of an acid solution would be “titrated” by slowly adding dropwise a standard solution‚ whose concentration is accurately known‚ of a strong base. The titrant reacts with and consumes the acid via a neutralization reaction. The point at which stoichiometric amounts of the acid and base have combined is the equivalence point. An example of this is shown in the equation: HCl(aq)+NaOH(aq)NaCl(aq)+H2O(l). The number of moles is given by knowing the exact concentration
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Content Outline for Physical Sciences Section of the MCAT GENERAL CHEMISTRY ELECTRONIC STRUCTURE AND PERIODIC TABLE A. Electronic Structure 1. Orbital structure of hydrogen atom‚ principal quantum number n‚ number of electrons per orbital 2. Ground state‚ excited states 3. Absorption and emission spectra 4. Quantum numbers l‚ m‚ s‚ and number of electrons per orbital 5. Common names and geometric shapes for orbitals s‚ p‚ d 6. Conventional notation for electronic
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N09/4/CHEMI/HPM/ENG/TZ0/XX+ 88096101 CHEMISTRY HIgHER lEvEl PaPER 1 Tuesday 3 November 2009 (afternoon) 1 hour INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question‚ choose the answer you consider to be the best and indicate your choice on the answer sheet provided. • The periodic table is provided for reference on page 2 of this examination paper. 8809-6101 16 pages © International Baccalaureate
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Experiment 1: Isolation of Casein from Milk * pH of milk – 6.6 * milk = 87.1% water‚ 4.9 % CHO 3.9 %‚ fats‚ 0.7% minerals Experiment 2: Protein Hydrolysis and Characterization | Reagents | Principle | Test for | Positive Result | Negative Result | Biuret | CuSO4‚ NaOH | Complexation of Cu+2 with amide N atoms | Polypeptide bonds | Violet/purple solution | Blue color solution | Sakaguchi | 10% NaOH‚ 0.02% α-naphtol solution‚ 2% NaOBr | arginine condenses with α-naphtol and NaOH
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Thermochemistry Saxon Evans & Zac Taylor Dr. Nachman 2/08/2011 Abstract: Using the chemical equation we can study the reaction taking place between magnesium metal and sulfuric acid in solution. The = for the reaction of sulfuric acid and magnesium metal. Introduction This report demonstrates calorimetry‚ or the technique of measuring heat effects in the surroundings. In order to make sure that there is no temperature change‚ or that it is an isothermal heat transfer‚ it is kept
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Determination of Heats of Reaction: 5. Give the net ionic equation for each reaction. 6. Determine the limiting reactant and the amount of the limiting reactant in each of the reaction performed. 7. Calculate for the theoretical and experimental enthalpy of each reaction. a. Determine whether the reaction is endothermic or exothermic. b. Give the %error of your experimental values. 8. Relate the sign of ΔT to the sign of the experimental ΔH. 9. For reactions 1 – 4‚ which pair gave the most and
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The knowledge of chemical analysis today has become important not only for scientists in their research but in fact bears influence in our daily routine as well. To recognize and classify these uses‚ we have to first understand‚ what is chemical analysis?Chemical AnalysisChemical Analysis is a body of procedures and techniques used to identify and quantify the chemical composition of a sample of substance.1 It may be said as a collection of all the techniques required to obtain any chemical information
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Faculty of Chemical Engineering (FChE) SKKK 4153 PLANT DESIGN 2014/2015-SEM 1 FINAL REPORT PROPYLENE PRODUCTION PLANT LECTURER ASSOC. PROF. IR. DR. SHARIFAH RAFIDAH WAN ALWI DESIGN TEAM EQUINOX NO. 1. 2. 3. 4. 5. TEAM MEMBERS EMAD MOHAMMED NOMAN AL-DHUBHANI MUHAMMAD FAIRIS BIN HADIPORNAMA KELVIN RAWING SEBASTIAN NUR FADZLYANA BINTI HAMDAN MIMI KHAIRIAH BINTI AWANG MATRIC NO AA103001 A11KK0022 A11KK0065 A11KK0035 A11KK0169 1 TABLE OF CONTENTS Page TABLE OF CONTENTS 2 CHAPTER 1 INTRODUCTION
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Aim To find out difference in the heat of combustion for different types of alcohols. Hypothesis The higher the number of carbon atoms in an alcohol is‚ the higher the energy for the heat of combustion. Alcohol is a homologous series‚ a series of organic compounds with similar formula and chemical properties‚ and increase in molecular size and mass. When the equations for combustion of these alcohols are listed in the order of increasing number of carbon atoms‚ Methanol 1 CH3OH(l) + 3/2 O2(g)
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Titration Lab How Much Citric Acid is in Your Soda? PURPOSE To determine the molarity (concentration) of citric acid (H3C6H5O7) in various different citrus flavored sodas. BACKGROUND PRINCIPLES Popular sodas all strive for a somewhat sour (’tart’) flavor and manufacturers utilize acids to impart this taste. While there are a vast variety of different brands of sodas on the market‚ they can be broken into two main categories: dark or clear. This differentiation is not only a simple color
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