Upon doing research on heavy metals in our water ways I have come to realize that almost all heavy metals can be found in our rivers‚ streams and drinking water. Aluminum‚ Arsenic‚ Chromium‚ Copper‚ Iron‚ Lead‚ Manganese‚ Nickel‚ Silver‚ and Zinc are all chemical elements. Chromium‚ Copper‚ Iron‚ Manganese‚ Nickel‚ Silver‚ and Zinc which are yellow on the periodic table are considered transitional metals. Aluminum and Lead which are light blue on the periodic table are considered other metals.
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Stainless Steels: must have at least 10% chromium A. Ferritic Stainless Steels: Iron‚ chromium + low carbon a. Magnetic b. Lowest cost c. Non-hardenable i. Can be annealed d. BCC structure e. Low carbon ii. Less than .2% f. Chromium content iii. 16-20% g. B. Martensitic Stainless Steel: iron‚ chromium + higher carbon h. Magnetic i. Martensitic Structure j. Hardenable k. High Carbon
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Mass | 1 | 3.000g | 2 | 5.968g | 3 | 8.935g | 4 | 11.962g | 5 | 14.957g | Average | 8.9644g | Part IV: Determining the Mass of Unknown Weights. Unknown (24.823g) Iron (Fe) | Mass of beaker | 50.000g | Mass of beaker + unknown | 74.823g | Mass of unknown | 24.823g | Unknown (25.167g) Iron (Fe) | Mass of beaker | 50.000g | Mass of beaker + unknown | 75.167g | Mass of unknown | 25.167g | Discussion <Explain‚ analyze and interpret what you observed. Draw
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copper sulfate (blue crystals)‚ sodium chloride (salt)‚ and iron. Copper sulfate is a chemical compound which is produced commercially by reacting various copper (II) compounds with sulfuric acid [1]. It generally appears as a bright blue or green crystal [1]. Its chemical formula is CuSo4. Iron is silver-white magnetic metallic and readily rusts in moist air [3]. Its chemical formula is Fe. The chemical reaction was demonstrated by the iron reacting to the copper sulfate.
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percent of iron in an unknown sample will be determined by using a redox titration and then compared to a different method. A primary standard which in this case is ferrous ammonium sulfate will be used to standardize potassium dichromate. The standardized potassium dichromate will then be used to titrate the unknown iron sample using the indicator p-diphenylamine sulfonate. The standardized potassium dichromate which has a concentration around 0.017 M is then titrated into the unknown iron sample
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Then‚ on May 1‚ 1861‚ the company changed its name to Bethlehem Iron Works. Alfred Hunt was elected president by the board of directors on July 15‚ 1860. In its early years‚ it produced railroad rails and armor plating for the US Navy. In 1899‚ the company assumed the name‚ Bethlehem Steel Company. In 1904‚ Charles
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that are needed in small amounts for your body to function. They are as essential as vitamins and your body needs to get them from the food you eat. For example‚ you need: calcium to make strong bones sodium for fluid balance and nerve function iron for oxygen transport in the blood and energy metabolism iodine for thyroid hormone function Minerals and trace elements are mainly found in meat‚ cereals‚ fish‚ milk and dairy foods‚ vegetables‚ dried fruit and nuts. How much do I need? Nutritional
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We all know Iron Man as the man in the red armor‚ yet we cease to know exactly what made the suit capable of it’s abilities. Nanotechnology is the prime reason behind Iron Man’s abilities in both the comic and movies. His suit actually contained little iron‚ in fact‚ the suit was “heavy‚ dense and prone to rust” (16). Thanks to Nanotechnology the suit was altered into something that would weigh less‚ be easier to maneuver in and prevent him from being injured during combat. As stated by Lynne Robinson
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per kg. GDGWI has established nutritional requirements that each main dish of the cafeteria must meet. Specifically‚ the total amount of the dish prepared for all the students for one meal must contain 180 grams (g) of protein‚ 80 milligrams (mg) of iron‚ and 1‚050 mg of vitamin C. (There are 1000 g in 1 kg and 1‚000 mg in 1 g.) For simplicity when planning‚ Parag assumes that only the potatoes and green beans contribute to the nutritional content of the casserole. Because Parag works at a cutting-edge
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catalytic materials‚ precision ceramic material‚ laser materials‚ superconducting materials‚ magnetostrictive material‚ magnetic cooling material‚ magnetic optical storage material‚ optical fiber materials‚ etc. Separation is often used for rare-earth ore processing. The different density of rare earth minerals and gangue minerals is used to do separation. Commonly used gravity separation equipments are: cone concentrating machine‚ spiral concentration machine‚ shaking table‚ etc. High efficiency concentrating
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