tubes Boiling tube rack Spatula Polycarbonate glasses Bunsen burner Subtance List: Sodium carbonate solution Copper sulphate solution (Safety: High toxicity) Sodium hydroxide solution (Safety: Irritant) Ammonia solution (Safety: Toxic by inhalation) Potassium iodide solution (Safety: Mild irritant) Lead nitrate solution (Safety: Toxic) Sulphuric acid (Safety:
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Fig. 4. Mean (± SEM) weight of pompano fish (g) fed experimental diets on days 0‚ 14‚ and 28 of the trial. Treatment diets included the basal diet‚ or the basal diet with 0.05% Macrogard (D0.05)‚ 0.10% Macrogard (D0.10) and 0.20% Macrogard (D0.20) supplementation. Data are presented as the means ± SEM. Different letters are significantly different between treatments at each time point. Table 4. Growth performance of pompano fish fed different concentration β-glucan in the diet for 28 days. Data
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Kayla Tucker Cycles Project In this paper i will be describing the different cycles that we have learned about. There are five cycles that are constantly happening around us. There is the water cycle‚ phosphorus cycle‚ nitrogen cycle‚ carbon cycle and the sulfur cycle. The water cycle is the first one i will be talking about. It is a continuous cycle and the water goes from liquid state to a gas state over and over again. It begins in a process called evaporation which is “the process of
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gauge the effectiveness of the buffers by measuring their pH levels in various titration solutions‚ using a pH meter. II. Procedure To start our experiment we had to prepare Buffer B‚ which was the .060 M Ammonia/Ammonium solution. Using 3.0 M ammonia‚ we had to calculate the proper volume of NH3 base by using the M1V1 equation. Calculation: Using pipettes we measured out the needed volume and transferred it to an Erlenmeyer flask‚ which we eventually used to combine
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states is commonly used for freezing involving medical purposes. It appears white in its solid form. <br><br>Chemical - Because of its triple bond‚ nitrogen is not very reactive. It tends to react with hydrocarbons to form photochemical smog.<br><br>Ammonia: Physical - Ammonis is a gas that is strong and pungent‚ it is colorless‚ and tastes bitter.<br><br>Carbon Dioxide: Physical - Carbon Dioxide is a gas that is distinct in scent‚ colorless‚ and tastes sour. It s denser than air and its Lewis Structure
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observed. These included sodium bicarbonate and hydrochloric acid‚ bromothymol blue and hydrochloric acid‚ ammonia and bromothymol blue‚ hydrochloric acid and blue dye‚ blue dye and sodium hypochlorite‚ potassium iodide and lead nitrate‚ sodium hydroxide and phenolphthalein‚ hydrochloric acid and phenolphthalein‚ sodium hydroxide and sliver nitrate‚ ammonia and silver nitrate‚ and ammonia and copper (II) sulfate. Some mixtures were also placed in the light or mixed with additional hydrochloric acid
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Sample Questions 1. In the chemical formula for ammonia‚ NH3‚ what does the subscript 3 represent? (a) the number of ammonia molecules that will bond together (b) the number of nitrogen atoms in each molecule of ammonia (c) the number of nitrogen and hydrogen atoms in each molecule of ammonia (d) The number of hydrogen atoms in each molecule of ammonia 2. The diagram above shows a block from the periodic table. The number six represents the following consumers eats only producers? (a) atomic
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Excretion. a) excretion is the removal or metabolic waste from the body. Metabolic waste consists of waste substances that may be toxic or are produced n excess by reactions inside cells. b) Explain the importance of removing metabolic wastes‚ including carbon dioxide and nitrogenous waste‚ from the body. The are many substances that need to be excreted - almost any cell product that is formed in excess by the chemical process occurring in the cells must be excreted. However there are two
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2014 Hydrogen has number of applications from chemical processing‚ petroleum recovery and refining‚ metal production and fabrication‚ aerospace‚ and fuel cells. The sectors which impose the largest demand for hydrogen are petroleum refinery and ammonia production while automotive fuel is an emerging sector with huge potential in the future. Hydrogen can be generated by the company itself which is utilizing it and can also be purchased from hydrogen producers (other company). The former one called
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CHAPTER 1 Introduction Covering over 70% of the planet’s area‚ the Earth’s oceans could potentially be utilized as a source of virtually inexhaustible renewable energy. Ocean Thermal Energy Conversion (OTEC) is a method that employs naturally occurring temperature differences between warm surface water and colder deep seawater. To be effective a minimum temperature difference between the ocean surface layers is 20C . These temperature gradients exist primarily in specific tropical regions
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