Andrea Moreno 4 September 2015 Block B Calculations: There are no calculations. Analysis/ Critical Thinking Questions: Compare your data for the pure substances with the data for each of the two solid mixtures. Which of the pure substances shows behavior that is similar to what you saw with the the two-solid mixtures (Mixture 1 and Mixture 2)? If you cannot positively identify your mixture‚ discuss the possibilities for the mixture. The starch and mixture 2 are both similar because they both did
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and depth research report on China Sodium Hyaluronate Injection industry. The report firstly introduced Sodium Hyaluronate Injection basic information included Sodium Hyaluronate Injection definition classification application industry chain structure industry overview; international market analysis‚ China domestic market analysis‚ Macroeconomic environment and economic situation analysis and influence‚ Sodium Hyaluronate Injection industry policy and plan‚ Sodium Hyaluronate Injection product specification
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Valuable Experience Gained During the Training Period The valuable experience that I gained during the training is when we are in the furnace of the boiler where the combustion takes place. The furnace is a internal parts of the boiler so we are taking the advantage to see what’s inside the boiler. We saw the generating tubes‚ bunker fuel injector‚ grates that we need to fix because of mis-alignment of the grates base. Grate is use for de ashing to avoid clogging up of the boiler. The second
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Sodium Bromide- white‚ crystals‚ granules. Soluble in water with no reactivity. Molar weight of 102.89g. Sulfuric Acid- colorless liquid that is miscible in water and produces heat. Highly reactive and has molar weight of 98.08g. Sodium Bicarbonate- baking soda‚ white lumps that are soluble in water. Zero reactivity and has molar weight of 84.01g. Water- polar with molar weight of 18.02g Procedure: Weigh out 1.4mL of n-butyl alcohol in a round bottom flask. Add 2.4g of sodium bromide
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solution was then refluxed for an additional 5 minutes. Next‚ the mixture was allowed to cool to room temperature. Using a Pasteur pipet‚ the solution was transferred to a 100 mL beaker. While stirring with a glass rod‚ aqueous saturated sodium bicarbonate was added dropwise to the mixture. This was done until the pH measure between 4 and 6. The mixture was cooled in an ice water bath. The sulfanilamide was collected on a Buchner funnel and rinsed with 5 mL of cold water. The solid was air
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Pipet 1 Hydrochloric Acid‚ 1.0M-1 mL 1 Lead (II) Nitrate‚ 0.2 M- 2 mL in Pipet 1 PhenolphthaleinSolution1%1mL 1 Potassium Iodide‚ 0.1 M-2 mL in Pipet 1 Silver Nitrate‚ 0.1 N – 2 mL in white Dropper Bottle 1 Sodium Bicarbonate‚ 1 M – 2 mL in Pipet 1 Sodium Hydroxide‚ 1 M – 1 mL 1 Sodium Hypochlorite‚ 1% - 2 mL in Pipet 1 Starch Solution‚ 1% Stabilized - 2 mL in Pipet 1. For the following combinations of chemicals and using a different well of the 96-well plate for each combination‚ place 2
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Weight of ampicillin sodium (mg) What weight (in mg) of ampicillin sodium (C16H18N3NaO4S) will provide 144 mg of ampicillin base (C16H19N3O4S)? 27. Weight of potassium permanganate (g) Potassium permanganate is normally made as a concentrated solution which is then diluted prior to
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CH201L S.Y. 2014-2015 Analysis of Oxygen-Bearing Organic Compound 2 BS Chemistry‚ College of Science‚ University of Santo Tomas Espana‚ Manila Philippines 1015 Abstract An unknown sample was given along with five standards to test the presence of oxygen in the sample. The unknown sample underwent five different chemical analysis namely Dichromate test‚ Tollen’s test‚ Lucas test‚ DNPH test‚ and Iodoform test. Each test will determine if the unknown sample will have the same reaction as
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A Short Story : The Donkey and The Cotton This Short Story The Donkey and The Cotton is quite interesting to all the people. Enjoy reading this story. There once lived a salt merchant. He had a monkey for his assistance. Every morning‚ he would load a sack of salt on the donkey and go to the nearby town to sell it. On the way‚ they had to walk across a pond. One day‚ while crossing the pond‚ the donkey thought‚”Ooh! This load is so heavy that I become exhausted very soon
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CALCULATIONS Determining the amount Limiting Reagent used. nlimiting reagent = Molarity x Volume or Mass / Molar Mass Example: Limiting reagent is 5mL of 1.0 M HCl nlimiting reagent = Molarity x Volume nlimiting reagent = (1.0 [mol/L]) x 0.005 [L]) = 0.005 mol Determining the qrxn and qcal. qrxn + qcal = 0 -qrxn = qcal qrxn = ΔHrxn x nlimiting reagent qcal = Ccal ΔT qrxn = - Ccal ΔT + mcsolid ΔT (note: only if there is a precipitate formed in the reaction)
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