"Determination of ka for a weak acid using lab paq" Essays and Research Papers

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    LABORATORY EVALUATION OF SOIL MOISTURE USING MICROWAVE TECHNIQUES 1K .Prasanth ‚ 2K .Shashank ‚ 3M .Ashok ‚ 4M . AV H Krishna ‚ 5Zachariah C Alex 1B.TECH (ECE)‚VIT University‚Vellore‚2B.TECH(ECE)‚VIT University ‚Vellore‚ 3B.TECH (ECE)‚VIT University‚Vellore‚4B.TECH(ECE)‚VIT University ‚Vellore‚ 5Senior professor‚ VIT University‚ Vellore. ABSTRACT Microwave techniques can be used to measure soil moisture content‚ mineral content and fertility of the soils. A microwave set up is

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    Unit 4 Assessment 2-Benzoic Acid Synthesis Synthesis and Investigation of Benzoic Acid Our aims: Create benzoic acid using benzaldehyde and hydrogen peroxide. Then remove some impurities from the benzoic acid crystals. Apparatus: Titration Pipette (25 cm3) Burette (50 cm3) Retort stand Clamp Conical flask (250 cm3) Volumetric flask (250 cm3) and stopper White tile Beakers (250 cm3) Dropping pipette Filter funnel Deionised water Phenolphthalein indicator Volumetric flask

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    Ford Ka Case

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    1. Introduction 1.1 Problem statement On which target groups should Ford focus with the selling of their new Ford Ka on the French small car market‚ to obtain a third of Renault’s market share within three years? 1.2 Market definition The market in which Ford Ka will operate‚ is the small car market in France. By small car market we mean category A & B‚ cars that are less than 390 cm long. Other cars are excluded‚ because the lack of information about this cars. 2. Internal analysis 2.1

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    Enzyme Lab Using Jello

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    Enzyme Lab Using Jello INTRODUCTION: Enzymes are known as protein catalysts. The name protein catalyst suggests that most enzymes are made of proteins. A catalyst is a substance that speeds up chemical reactions without being consumed in the process. (Giuseppe‚ M 2002‚ p.69). After a reaction has been catalyzed‚ the catalyst can be used again to catalyze the same reaction. Enzymes reduce the activation energy (minimal energy) it takes for a reaction to take place. Enzymes can either catabolize

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    # 4: Dissociation Constant Weak Acids Introduction: The dissociation constants of weak monoprotic acids were determined with the aid of a buffer and pH meter. Experiment: This experiment was performed according to the procedures as provided in the Chemistry 111B laboratory manual: Po‚ Henry and Senozan‚ N. "General Chemistry Experiments Chemistry 111B"‚ 8th Ed.‚ 2004 Hayden-McNeil Publishing‚ pp 80-88. To determine the dissociation constants of weak monoprotic acids (HX and HY)‚ a buffer was needed

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    Acetylsalicylic acid is the active pharmaceutical ingredient in aspirin and can be synthesized by the esterification reaction of salicylic acid and acetic anhydride in the presence of an acid catalyst. An esterification reaction is when an acid is converted into an ester by combining with an alcohol and removing a water molecule. When heating the salicylic acid mixture in the warm water bath‚ the mixture should be removed from the bath within 8 minutes‚ to reduce the chance of the acetylsalicylic acid decomposing

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    ventricular contraction. We measure blood pressure using a sphygmomanometer and a stethoscope. To measure the systolic pressure‚ place the blood pressure cuff on the upper arm and inflate the cuff until blood flow in the brachial artery is stopped. Then we slowly release the pressure of the cuff until the systolic pressure in the artery is greater than the pressure of the cuff‚ which causes a tapping sound heard through

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    Acids and Bases

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    ACIDS AND BASES The reason that acid-base reactions are so important is that many of the things you come into contact with on a daily basis are either acids or bases. Most fruits are acids‚ as are carbonated beverages‚ tea‚ and battery acid. Common household bases include baking soda‚ ammonia‚ soap‚ and antacids. What are acids and bases? There are not one but three common definitions used to describe acids and bases: 1. Arrhenius acids and bases 2. Brønsted-Lowry acids and bases 3. Lewis acids

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    Ford Ka in France

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    buyers. The highly successful Twingo might have been an influencing source in the development. The fact remains that the car was developed without a target customer in mind. That might be the reason why‚ despite its innovative styling attributes‚ Ford Ka could not alter consumer perceptions of what a small car can offer to the extent the Renault Twingo did. Cost

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    2.4.4. Direct determination of saliva proteins Protein contaminated with nucleic acids absorbed the light at wavelength 280 nm and it absorbs much strongly at wavelength 205 nm when it is free from nucleic acids. The UV-visible spectrophotometer was used in determination of saliva proteins (Figure 2.2). Cold trichloroacetic acid (10 % w/v ) was added to the sample‚ centrifuged for 10 minutes to precipitate protein. The absorbance of a known volume

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