The rate of reaction between sodium thiosulphate and hydrochloric acid Candidate name: Yeo Jin Kim (Kimberly Kim) Candidate number: 000791-021 Teacher: Yitao Duan 1.0 Aim The aim of this experiment is to investigate the changing of concentration effect the rate of reaction between sodium thiosulphate and hydrochloride. 2.1 Chemical Equation 2.0 Raw data 3.2 Qualitative Data 2.1.1 Before the experiment Substance | Color | State | Smell | Hydrochloride (HCl) | Colorless
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Assessment of the OJT/Practicum Program A. New knowledge‚ attitudes‚ and skills acquired I learned the flows and transaction in the Government process. Though‚ most of the work involves papers in procedural ways. The receiving and releasing of memorandum is very essential in a way that affects the flow of the work and it should be submitted on or before deadline‚ so as the require data. As I was expose to this environment‚ it not much different with the projects at schools‚ terms papers that
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Factors affecting the rate of reaction between a metal and an acid The rate of a reaction can be measured by the rate at which a reactant is used up‚ or the rate at which a product is formed. The temperature‚ concentration‚ pressure of reacting gases‚ surface area of reacting solids‚ and the use of catalysts‚ are all factors which affect the rate of a reaction. Individual properties of substances also affect reaction rates. The scope of these properties is broad and there are few generalizations
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Introduction We are going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid. I will add calcium carbonate (marble chips) to hydrochloric acid. When calcium carbonate is added to hydrochloric acid a reaction takes place. The solution fizzes and gives off the gas carbon dioxide. I will collect this gas in a gas syringe and will time how long it takes for the reaction to produce 100cm3 of carbon dioxide. CaCO3 +2HCL Co2 +CaCl2 +H2O CalciumHydrochloricCarbonCalciumWater
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you can see that there is a relation between the rate of reaction and the surface area. The larger the surface are‚ the faster the rate of reaction seems to be. However‚ although the grain with the largest surface area (the smallest grain) reached the highest point within the shortest amount of time‚ its end result was still lower then the medium sized grain. The explanation for this result is relatively easy. The rate of a chemical reaction can be increased by increasing the size of the surface
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[ print page ] 04.05 Chemical Reactions: Combustion: Lab Worksheet and Rubric Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page. Procedure: 1. Iron (IIII) and copper (II) sulfate solution Fill a small test tube halfway with copper (II) sulfate solution. Add a 2.0 gram iron rod to the solution and observe the reaction. 2. Lead (II) nitrate and potassium iodide solutions Pour about 2.0 mL of lead (II) nitrate into
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Chemical reactions can happen slowly or fast. The speed of the reaction rate can be changed. Some of the factors that can affect the reaction rate are surface area‚ temperature‚ and concentration and pressure. Surface area is the exposed‚ outer layer of a solid. Increased surface area increases reaction rate because more particles on the surface of a solid come in contact with the particles of another substance. For example‚ if you place a donut stick into water‚ the donut will react slowly with
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Rates of a Reaction (Kinetics) KINETICS DESIGN LAB Research Question: Does the concentration of Potassium Iodide (KI) affect the rate of its reaction with hydrogen peroxide (H2O2) (of a fixed concentration)? Introduction: There are several factors that affect the rate of a reaction. Some of them being Pressure (if the reactants are Gases)‚ Temperature‚ Presence of a Catalyst‚ Surface Area of the reactant‚ and Concentration. According to the Collision Theory‚ during a reaction‚ particles
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OJT PORTFOLIO CDO FOODSPHERE INC. Submitted to: Prof. Ramos Submitted by: Garcia‚ Jonine A. BSEntrepreneurship 3C-Marketing ACKNOWLEDGEMENT PRELIMINARIES: Title Page …………………………………………………………………………………………………………………………. Acknowledgement ………………………………………………………………………………………………………….....ii Table of Contents ……………………………………………………………………………………………………………..iii I. COMPANY PROFILE * VISION AND MISSION * CORE VALUES‚ OBJECTIVES‚ PHILOSOPHIES (IF ANY) * HISTORICAL BACKGROUND * ORGANIZATIONAL
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TETRAHEDRON LETTERS Tetrahedron Letters 39 (1998) 9279-9282 Pergamon Efficiencies of Reductive Amination Reactions on Different Solid Supports Chinh T Bui‚ Firas A. Rasoul‚ Francesca Ercole‚ Yen Pham and N Joe Maeji* Cluron TechnologiesPry Ltd.. 11 Duerdin Street. Cla.~aon‚Vic. 3168‚ Australia Received 12 August 1998; accepted 1 October 1998 Abstract: Rreductive amination on resins derivatized with 5-(4-forntyl-3‚5-dimethoxyphenoxv)valeric acid linker (Barallv linker‚ 1) 1 has been
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