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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of NaNO3 are formed. Justify that the data obey the law of conservation of mass 2. (a) When 4.2g of sodium bicarbonate is added to a solution of acetic acid weighing 10g‚ it is observed that 2.2g of CO2 is released into atmosphere. The residue is found to weigh 12g. Show that these observations are in agreement with the law of conservation of mass. (b) If 6.3 g of sodium bicarbonates is added to 15g of acetic acid solution‚ the residue is found to weigh 18g‚ what is the mass of CO2 released
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Some tests was conducted with carboxylic acids and its derivatives 1. Solubility of Carboxylic acids in 5% NaHCO3 Carboxylic acids can be easily dissolved in a basic solution‚ such as of sodium bicarbonate (NaHCO3). This is because there is an acid-base reaction between the carboxylic acid and the bicarbonate anion. RCOOH + HCO3 RCOO- + CO2(g) + H2O Carboxylate ion As carboxylic acids lose hydrogen ion‚ they are
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the solution to a clean separatory funnel. The different phases separated‚ and we drained the lower aqueous layer. We added 5mL water to organic layer‚ mixed and collected the lower organic layer. We extracted the organic layer with 5mL sodium bicarbonate‚ drained organic layer and dried with anhydrous sodium sulfate. We decanted the alkyl halide solution and set it aside to be analyzed by refractometry. We performed the second reaction of competitive nucleophiles with 2-methyl-2-butanol. We
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Stoichiometry Lab Stoichiometry is the end result of adding up chemical elements that were involved in chemical reactions (http://dictionary.reference.com/browse/stoichiometry). The word stoichiometry was obtained from two greek words meaning element and measure. This explains the definition for the term. A chemist named Jeremias Benjamin Richter was the chemist responsible for first realizing what stoichiometry was (http://www.chemteam.info/Stoichiometry/What-is-Stoichiometry.html). In 1972
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http://www.ucar.edu/communications/gcip/m2ccycle/m2pdf.pdf http://www.ucar.edu/communications/gcip/m2ccycle/m2pdf.pdf The Carbon Cycle Importance of Carbon Cycle Carbon (C) is the fourth most abundant element in the universe and is found in all living substances as well as in many inorganic materials and is also the key element for life. The carbon cycle is the exchange of carbon among three reservoirs or storage places: the land‚ the oceans‚ and the atmosphere The atmosphere has the least amount
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lipids occur including the absorption of amino acids and glucose. Here‚ the pancreas then excretes a large amount of bicarbonate and an inactive enzyme call trypsinogen which in turn activates to form trypsin which also helps the breaking down of proteins. But compared to pepsin‚ trypsin does not activate under acidic conditions where chyme has a very low pH and with that‚ the bicarbonate neutralizes chyme which allows for activation. Additional to that‚ once trypsin is activated‚ it itself activates
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vegetable oil (palm oil) ‚ refined glycerine ‚ corn starch ‚ cocoa powder ‚ glucose syrup‚ emulsifier (distilled monoglyceride E471 ‚ polyglycerol ester E475) ‚ sorbitol ‚ salt ‚ artificial flavor (chocolate ‚ vanillin) ‚ citric acid ‚ sodium bicarbonate ‚ potassium sorbate ‚ calcium propionate ‚ baking powder. 8 2. Process of manufacturing chocolate layer cake Firstly‚ heating oven to 350 degree F (gas mark four or 180 degree C). Secondly‚ prepare small cake tins with non-stick
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coloring is denser than water‚ so it drops through the oil and settles in the water mixing with it. The chemical reaction is a result of dropping the Alka-Seltzer into the water. When Alka-Seltzer tablets are dissolved in water‚ bicarbonate forms (from the sodium bicarbonate)‚ which in turn reacts with hydrogen (from citric acid) to form water and carbon dioxide gas. As the carbon dioxide gas bubbles float up towards the oil they get trapped in the denser oil and begin to sink back down. Eventually
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