Tripod Gauze mat Beakers (2 x 100mL) Boiling chips Distilled water Sodium chloride Sodium chloride (solid) Glass rod Measuring cylinder (25mL) Ethanol Watch glass Thermometer 100% Orange Juice 100% Apple Juice 100% Prune Juice Solder Fruit Scone Charcoal Copper(II) Chloride Magnifying glass Procedure A. Homogenous or Heterogenous 1. Examine 5 mixtures and record your observations in a table similar to the one drawn below 2. Classify the mixtures as either homogenous or heterogenous B. Solutions
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RECRYSTALLIZATION Lem Therese D. Delos Ama‚ Glenn Dale M. Desquitado‚ John Carlos M. Drapesa‚ Arianne Valerie B. Escritor‚ Elisha Ellis R. Esteva Group 4 2B Medical Technology Organic Chemistry Laboratory ABSTRACT In this experiment‚ acetanilide was used as the pure organic compound. Acetylation of aniline and acetic anhydride yields the crude product or crude acetanilide. The crude acetanilide was purified by dissolving it in hot water and then the solution was cooled slowly by placing in
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cooking as an often overlooked source of many critical‚ interrelated planetary problems. Worldwide‚ almost 3 billion people cook or eat meals cooked over wood or charcoal fires. The soot from these fires causes respiratory ailments that kill 2 to 4 million people a year‚ most of them women and children. The reliance on wood and charcoal for cooking has created areas of severe deforestation in over 50 countries. Deforestation directly causes or amplifies a host of acute problems‚ including both drought
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pebbles‚ sand‚ cloth‚ charcoal‚ then cloth‚ sand‚ and pebbles it filter the water will be cleaned.”. Then you start to build hypothesis‚ so start by getting a bottle‚ cut the bottom of the bottle like two inches of it. You take the cap off the bottle then get two coffee filter and use two rubber bands to tie it to the cap of the bottom. Then add about a inch of pebbles of to the bottle‚ and then about a half inch layer of sand‚ a layer of cheesecloth. Next is a layer of charcoal‚ layer of cheesecloth
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systems has truly defined the technological advancements of recent centuries. Body: Prior to the 18th century‚ the methods in place for producing iron were relatively rudimentary and ultimately inefficient. Early 18th century European smelters used charcoal fired iron furnaces. The furnaces were also small and only yielded an “average output of a mere three hundred tons a year” (Technology and American Society‚ p. 85). By contrast‚ the United States produced almost 55‚000‚000 metric tons of iron ore
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heads all day. After that‚ grab the flavor and just drizzle it into the bowl. Try to keep the tobacco loose so you can get some air to flow into the head. At the end just apply the foil on top and puncture holes into the foil so the heat of the charcoals can warm up the tobacco. After that is finished‚ it’s time to set up the actual
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CHAPTER 1 Introduction Background of the Study Like many other hygiene convenience‚ shoe polish or can also be called boot polish is usually a wax ‚ cream or paste used by people to shine‚ water proof and restore the appearance of leather shoes. This extends the footwear’s life. This is made up of many kinds of chemicals and because of this; it can cause irritations‚ allergies to us. In our generation‚ shoe polish is used every day and companies produce a lot of it to meet the demands of
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knowledge of food and standards of hygiene as those used in the kitchen. Barbecue hints and tips A sheltered‚ level site away from anything that could catch fire is best. Never try to move a lit barbecue‚ or leave it unattended. Good timing A charcoal barbecue needs to be lit about 45 minutes before you would like to start cooking. A gas barbecue should be lit about 10 minutes before use. Controlled cooking Begin cooking when all the flames have died down and the coals are glowing red under
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Brief Summary of Methodologies Then the research methods must(a) outline the design and present a timeline‚ (b) describe participant selection and recruitment‚ (c) explain the procedures for assignment to condition and methods for experimental control‚ (d) describe the independent variable‚ the intervention‚ (e) present the dependent variables or measures‚ (f) discuss data collection and management procedures‚ (g) provide the data analysis strategy‚ including a power analysis‚ if appropriate‚ and (h)
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2.3.4 Customized Pricing Bid Response Model (CPBRM) Majority of the literature in the price-optimization area focuses on pricing of consumer goods or the optimal design of auctions but‚ a large percentage of firms face pricing decisions in a business-to-business setting where a customer requests bids from a small set of competing firms getting a quote for the product or service. When the total annual sales to the firm requesting the bid does not justify a dedicated sales person on behalf of the
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