The Lance Armstrong interview with Oprah Winfrey is very open with some restrictions. The entire interview was nearly two hours long‚ but I only analyzed part one of the interview. It pressed on every topic that the public wanted to know and should know about Armstrong’s doping experience during Le Tour de France. It was an interview that allowed Armstrong to discuss his truths with doping. He addressed the allegations that were true and suing those who spoke such allegations. The purpose of this
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Carbonate to react with Sulphuric Acid to get Copper Sulphate. EQUIPMENT USED: o 5 Grams of Carbon Carbonate o Weighing Boat‚ Spatula & Scales o 25 cm³ Sulphuric Acid o Beaker o Tripod and Gauze o Bunsen burner‚ Splint and Matches o Filter Funnel and Filter Paper o Conical Flask o Glass Dish RISK ASSESSMENT: o Sulphuric Acid – Corrosive o Safety Glasses and Lab Coats to be worn o Any Spillage‚ dilute with water and clear IMMEDIATELY METHOD: o Weigh out approximately 5 grams of
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at The Salters Chemistry Club for students. It has been reworked for general use here on TecHKnow Wiki Technician requirment for practical * 4-aminophenol * Clean appropriate size glassware * Access to Magnetic stirrer(s) * Buchner funnel and conical flash (filtering under vaccum) * Ice * Hotplate/bunsen burner * Oven (set at 45OC) Risk Assessment 4-aminophenol and ethanoic anhydride‚ are both IRRITANT’s- avoid contact with hands or breathing in vapours. If contact with
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Determination of Phosphorus Content of Fertilizer: Skill Building Lab © 2011‚ Sharmaine S. Cady East Stroudsburg University Gravimetric Analysis Skills to build: Using vacuum filtration Using a digital balance Using mass stoichiometry Doing a gravimetric analysis Fertilizer Scientists estimate that the earth ’s soil contains less than twenty percent of the necessary organic nutrients needed to meet our current food production. Carbon‚ hydrogen‚ and oxygen used to synthesize
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Synopsis: The main aim of the experiment is to find out the amount of calcium carbonate in toothpaste through back titration since calcium carbonate does not dissolve in water. A roughly weighed amount of calcium carbonate is mixed with hydrochloric acid and then titrated against sodium hydroxide. When the indicator turns from pink to orange‚ the volume of sodium hydroxide used is taken down. After doing some calculations‚ the average percentage of calcium carbonate in toothpaste is 19.2%. This average
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Can you expect to extract more DNA from a strawberry or kiwi fruit? Introduction: In the experiment we were inspecting the amount of genetic materials in fruits with different numbers of chromosomes. In the experiment‚ we mashed up a strawberry/kiwi fruit (See appendix 1 figure 2) added extraction butter and ethanol to extract the DNA. A chromosome is a long thread-like cluster of genes in the nucleus. DNA (deoxyribonucleic acid)‚ a self-replicating material which is present in nearly all living
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BASIC SEPARATION TECHNIQUES Contemporary modifications of filtration and dialysis use a matrix-based fibrous material that provides a mechanism of separation in many homogeneous immunoassays. These materials may be coated with specific antibody-ligand to foster selection of specific materials or species. Certain labels use magnetic particles in conjunction with strong magnets to effect separation. Basic universally used separation mechanisms‚ outside of those incorporated in immunoassay‚
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Lab #16: Gravimetric Analysis of Metal Carbonate Introduction: In this laboratory the identity of group 1 metal Carbonate is determined gravimetrically using a double replacement precipitation reaction. Concepts: Double-Replacement reaction Gravimetric analysis. Background: The identity of group 1 metal M is determined by analyzing an unknown Group 1 metal carbonate‚ M2CO3. There are 3 main reactions in this lab: 1. Equation 1: M2CO3 (s) → 2M+ (aq) + CO32- (aq) 2. Equation 2: Ca2+
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ice bath). A sensible precaution is to use a dropping funnel (Fig. 2) to add one of the reagents. After the reactants have been mixed‚ it is then necessary to heat the mixture to whichever temperature results in the best yield. Stage 3 – Separating the product from the reaction mixture Figure 2: Dropping funnel Solids can be separated from the reaction mixture by filtration. This is usually best achieved using a Buchner apparatus (funnel and flask) connected to a vacuum pump (Fig. 3). F60CH3
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Introduction In this lab‚ caproic acid was synthesized in a multi-step process that involved the synthesis of three intermediates – diethyl n-butylmalonate‚ potassium n-butylmalonate‚ and n-butyl malonic acid respectively. An IR was used to characterize the starting material‚ n-bromobutane‚ and the first intermediate‚ diethyl n-butylmalonate; while IR and NMR were used to characterize the final product‚ caproic acid. Reactions‚ Mechanism and Theory Caproic acid a.k.a n-hexanoic acid is a carboxylic
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