an Unknown Compound Purpose: The purpose of this experiment was to separate a mixture of two or more unknown compounds and identify them based on their melting point and reactivity with an acid or a base. Compound studied/Reactions: The organic solvent used in this experiment was methyl t-butyl ether (MTBE‚ 2-methoxy-2-methylpropane). The unknown that dissolved in the MTBE‚ but was insoluble in water. MBTE is very volatile and flammable. It was determined in the experiment that the unknown was
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for this country‚ even though most of us are not grateful enough‚ They fight for the rights we have‚ each and every one of us‚ and they deserve our appreciation. I believe that the Unknown Soldier deserves just as much appreciation. The Wreath Ceremony would be an amazing honor to participate in and honor the Unknown Soldier and all this Soldier has given to protect us. This is truly an honor for whoever is chosen‚ I personally want to participate in the Wreath Ceremony because
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The unknown carboxylic acid’s melting point was 108°C according to the Mel-Temp machine. The melting point is the temperature at which a solid precipitate changes into its liquid form upon heating. The melting point of benzoic acid‚ the aromatic carboxylic acid was 122°C. Thus‚ the product contained impurities which caused the solid to melt at a lower temperature than the actual temperature. Pure solids typically melt at higher temperatures while impure solids melt at lower temperatures. This is
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Purpose: The purpose of this was to determine the concentration of sodium carbonate in an unknown sample by titration. The solution of hydrochloric acid was prepared and standardized using Na2CO3. Observations: Week 1: Standardizing hydrochloric acid using sodium carbonate with bromocresol green indicator Table 1: Titration of sodium carbonate using hydrochloric acid Trial | Mass of Na2CO3 (g) | Burette Reading (mL) | Final Volume of HCl (mL) | | | Initial | Final | | 1
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Goals The main goal of this project is to learn how to identify the properties of an unknown ionic compound. In order to do this successfully the group has to use a variety of methods and run several tests on the unknown compound. By doing this the group will be able to identify the different chemical and physical properties of the compound that will help obtain the identity of the specific compound given. The group will devise two syntheses of the compound‚ and compare them for cost effectiveness
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← A Passage To Africa. (Narrative Article‚ Literary Analysis.) Poetry Analysis: An Unknown Girl- Moniza Alvi. 28May In the evening bazaar Studded with neon An unknown girl Is hennaing my hand She squeezes a wet brown line Form a nozzle She is icing my hand‚ Which she steadies with her On her satin peach knee. In the evening bazaar For a few rupees An unknown girl is hennaing my hand As a little air catches My shadow stitched kameez A peacock spreads its lines Across my palm.
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EXPERIMENT 1 IDENTIFICATION OF UNKNOWN COMPOUNDS Date of experiment : 7th August 2012 Venue: ME204 INTRODUCTION Chemical reactions are regularly categorized into 3 types: oxidation-reduction (redox reaction)‚ precipitation (double displacement) and acid-base reaction (double displacement) Type 1: Oxidation-Reduction Reactions Oxidation-reduction processes include the movements of electrons form oxidants to reductants‚ which lead to increases in oxidation
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2.1 Sanitation Methods There are Four Methods that conducted on the laboratories in order to detect the presence of microorganisms. There are Rodac Method‚ Swab Method‚ Rinse Method‚ and lastly Open Dish Method and it will be discussed in detail below. 2.1.1 Rodac Method The purpose of this Standard Operating Procedure is to describe a program that will adequately measure the efficacy of disinfection of Rooms and equipment in each laboratory‚ RODAC plates can detect the presence or absence of
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Unknown reports in microbiology are written in scientific format. Scientific writing is written differently from other types of writing. The results of the exercise or experiment are what are being showcased‚ not the writing. The purpose of scientific writing is not to entertain‚ but to inform. The writing should be simple and easy to understand. There is a specific style that must be followed when writing scientific reports. Scientific writing is typically written in the passive voice. The
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UNIT 5 Unknown Language Journal: Arabic Contents 1 Lesson Objectives (Functional‚ Grammatical & Lexical) Lesson 1 Lesson 2 Lesson 3 2 Teaching Methods and Techniques Class Management Interactive Patterns & Activities Use of Materials 3 Contrastive Analysis 4 Summary Lesson Objectives: (3 lessons – 90 mins.) Lesson 1 The aim of this first class was to provide a very general introduction to the Arabic language‚ how it is written‚ how it is pronounced‚ and
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