1. INTRODUCTION Bangladesh is one of the least developed countries with a low resource base‚ a burgeoning population with a very low land-man ratio‚ often threatened by both natural & anthropogenic stresses. The vast majority of the population lives almost exclusively on the natural resource base. This resource base is under serious threat and environmental planning is essential for the survival with dignity for Bangladesh’s over 115 million people & for sustainability of the echo system. Like
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The purpose of this experiment was to determine the weight percentage of copper in brass. This was achieved by performing a redox titration known as iodometry. Copper‚ which was obtained from the brass‚ was used to react with iodide to produce iodine. Iodine was then titrated with thiosulfate. In this experiment‚ the amount of titrant dispensed correlates with the amount of copper; therefore‚ the amount of copper in brass was calculated by using the data recorded. In this experiment‚ the analyte
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RATE OF REACTIONS. The reaction rate (rate of reaction) or speed of reaction for a reactant or product in a particular reaction is intuitively defined as how fast or slow a reaction takes place. For example‚ the oxidative rusting of iron under the atmosphere is a slow reaction that can take many years‚ but the combustion of cellulose in a fire is a reaction that takes place in fractions of a second (right). Chemical kinetics is the part of physical chemistry that studies reaction rates. The concepts
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Volumetric Analysis of Vitamin C by Titration The objective of this experiment is to use a redox reaction titration to accurately determine the amount of vitamin C in a sample of lemon juice‚ orange juice‚ or grapefruit juice. Chemistry of Vitamin C The chemical name for vitamin C is L-ascorbic acid. Its molecular formula is C6H8O6; its molar mass is 176.12 g/mole. Ascorbic acid is found throughout the plant and animal kingdoms‚ occurring in citrus fruits‚ hip berries (such as rose
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This scientific report will be based on cellular respiration‚ or fermentation. In specific‚ how the type of sugar affects the rate of fermentation. The aim of this experiment was to find which type of sugar was best suited to produce ethanol. In the experiment‚ four different sugars were used‚ they included sucrose‚ glucose‚ lactose and fructose. This research is still relevant today‚ as alcohol is still consumed and is required on a large scale. This makes it crucial to companies to find the best
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Continuous stirred tank reactor models Dr. M.J. Willis Dept. of Chemical and Process Engineering‚ University of Newcastle. e-mail: Tel. Written: Updated: mark.willis@ncl.ac.uk 0191 222 7242 November‚ 1998 April‚ 1999; March‚ 2000 Aims and objectives Chemical reactors are the most influential and therefore important units that a chemical engineer will encounter. To ensure the successful operation of a continuous stirred tank reactor (CSTR) it is necessary to understand their dynamic characteristics
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Eastern Kentucky University Department of Chemistry Syllabus for CHE 101‚ Introductory Chemistry (CRN 22218) 3 Credit Hours Spring 2014 General Information Instructors: Tim Giles and Mary Lamar Email: tim.giles@eku.edu ‚ mary.lamar@eku.edu Phone: 859-576-4196 (only for emergencies- text) Textbook‚ etc.: General‚ Organic‚ and Biochemistry‚ 8th edition‚ by Denniston‚ Topping‚ and Caret‚ McGraw-Hill Higher Education Publishers‚ 2014. ISBN: 978-1-259-18718-6 Course Websites: http://learn.eku.edu
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Introduction: Calcium hydroxide is a soft white caustic powder used in making mortar‚ cements‚ calcium salts‚ paints‚ and petrochemicals. It is also used in saltwater aquaria to make up kalkwasser/limewater solutions for reef tanks‚ and is used as a pH regulating agent. Notice that calcium hydroxide is divalent and thus has twice the neutralizing power as molecules like NaOH that are monovalent. A Calcium Hydroxide Molecule: Calcium hydroxide is manufactured industrially by adding
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cocktail. These included; an anionic surfactant (sodium dodecyl sulfate‚ SDS)‚ a cationic surfactant (cetyl pyridinum chloride‚ CPC) and non-ionic surfactant (Tween-80‚ Tween-20) and polyethylene glycol‚ PEG. 2.10. Determination of the reaction stoichiometry Job’s method of continuous variation (25) was used to investigate the molar ratios of the formed metal complex.
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Cyclic Voltammetry of Ferricyanide Analytical Lab 1: 2410 L Carrie Spiaser Lab Partners: Rachel Urig‚ Michael Shingleton‚ Michael Cole‚ Samantha Rae‚ & Taylor Woodyard 9/6/16 Introduction: The purpose of this experiment was to understand the theory and instruments associated with cyclic voltammetry. In this experiment reducing ferricyanide to ferrocyanide according to the equation1: Fe(CN)63- + e- ↔ Fe(CN)64-. The half-cell potential of the ferri/ferrocyanide raction will be calculated and compared
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