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Chemistry Practical Assignment - Copper carbonate
4 pages (1000 words)
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...Copper carbonate if heated will produce gas and by measuring the volume of gas, we can experimentally establish the correctness of both the equations provided to us. The important thing for finding the correct equation is that the volume of one mole of gas at NTP is 22.4 liter and using this equation we can back calculate the mole or mass of carbon dioxide formed from the copper carbonate used for the experiment (Determining the Correct Equation for the Decomposition of Copper Carbonate, 2003) and hence find out the correctness of the eauation provided. Equipment and Apparatus required for conducting the experiment: The following apparatuses... are required to conduct the experiment...
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Which equation is correct
3 pages (750 words)
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...Copper Carbonate Introduction Copper carbonate also known as Cupric Carbonate CuCO3, is a bright bluish to green colored compound. In nature it occurs as Malachite or CuCO3.Cu(OH)2, which is an important mineral source for copper (Lee 1996, p. 817). When copper is left in moist air, it reacts with water and carbon dioxide to form a green patina, which is nothing but basic copper carbonate or CuCO3.Cu(OH) 2 (Marterson and Hurley 2004, p. 498). It is known to decompose on heating leaving a black solid residue and releasing a gas. The metal carbonates are known to decompose into metal oxide and carbon dioxide gas. Because, copper has two oxides Copper (I) oxide Cu2O and Copper... Thermal Decomposition of...
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Proposal #1
2 pages (500 words)
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...Copper Carbonate as the Pigment 1 Introduction Paint is defined as a liquid colloidal suspension that converts to a solid film after its application to a substrate (Schuerman George and Bruzan Raymond 327). It serves to protect surfaces and change their texture in addition to coloration. All paints contain four essential components, which influence their different application and resistance properties. These components include; pigments, binders, volatile substances and additives. A binder serves to hold the pigment to the surface. Most binders are polymeric in nature and are either suspended or dissolved in paint by emulsifiers... Project Proposal 10 March Laboratory Preparation of Paint Using Copper...
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Composition of acid rain
10 pages (2500 words)
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...Copper: The copper and copper alloys form a layer of copper carbonate (CuCO3) in the presence of carbonic acid. This is a green substance and is also called patina. This tightly adheres to the surface of the metal, and prevents further corrosion from acid rain. However, it gives an ugly green color to the copper structures and monuments. The process of creation of patina is: CO2(g) + H2O(l) H2CO3(aq) H2CO3(aq) + Cu(s) CuCO3(s) + H2(g) ("Corrosion of Copper Metal") As the concentration of carbon dioxide in the atmosphere increases from emissions, the rate of corrosion of copper also... Acid Rain Acid rain or acid precipitation is the "atmospheric deposition of acidified rain, snow, sleet, hail, ...
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Copper pipe
1 pages (250 words)
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...copper instead of using inch Advantages of using 0.5 inches copper instead of using inch Using 0.5 inches in a solar collector is more advantageous than using 1 inch copper because it increases solar radiation absorption and decreases emissions. The tubes are charged by Schrader valve 58, which has Freon refrigerant. The system easily embodies the outer heat conductance efficiency of heat collectors. In addition, using 0.5 inch copper has the advantage of passive collector system hence there is no need of electric power controls and pumps (Fred, 2010). In addition, it is easy to maintain and operate the system. Unlike solar collector that uses 1 inch copper, the one... Advantages of using 0.5 inches...
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Rosemont copper paper
3 pages (750 words)
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...Copper Company Rosemont Copper company is an Arizona based mining company whose main focus is mining copper. The company has a rich history in the mining sector. The controversial issue that surrounds the company at the moment regards the open-pit mining project whose site is south of Tucson in the Santa Rita Mountains. The name of the specific area is Helveita mining district. The vast reserves of copper in the area were discovered by two entrepreneurs in 1875. The first mining companies to explore the area were Omega Copper Company and Columbia Mining & Smelting Company (USDA Forest... Insert The Open-Pit Mine Project of Rosemont Copper ...
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Chilean Copper Mine Collapse
2 pages (500 words)
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...copper min collapse. Metal Bulletin Daily, 224, 65.... Two Communication Pieces Two Communication Pieces Communication One: For the Families TO BE DELIVERED FACE-TO-FACE WITH THE FAMILY MEMBERS Words cannot express that sadness and regret we feel for the terrible accident that has resulted in your loved ones being trapped in our mine. We take the safety and healthy of each of our employees very seriously and pledge to you that we are doing everything within our power to rescue each and every one of the affected miners as quickly and expeditiously as possible. While we will certainly be focusing in this days to come on what happened, and how to prevent it from happening again in the future, our sole f...
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History Of Copper
1 pages (250 words)
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...copper By Copper has a symbol Cu .It comes from the word cuprum which is a Latin word meaning’ from the island of Cyprus.it is man oldest metal discovered like 10,000 years an ago. A copper pendent was found in what is called now northern Iraq which is dated to about 8,700 B.C.it is said copper mining started in the Iran highlands and Middle East. From 4500 BC copper smelting sites started at places around Jordan, Egypt and Israel. By 3000BC development of copper alloys started. Examples of the earliest alloys of copper were arsenic and tin. These two alloys enabled the discovery of bronze which was easier to chuck. The alloys were harder, making alloys to be extra useful and by 2500 BC... History of...
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The Solvay process for sodium carbonate
7 pages (1750 words)
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...Carbonate The Solvay process for Sodium Carbonate Introduction The Solvey process is an important industrial process that is widely used to produce sodium carbonate (Na2CO3) from Sodium chloride and Carbon dioxide under a complex chain of reactions with Ammonia gas(NH3) being produced as an intermediary. The resulting, ammonium carbonate (NH4HCO3) then reacts with NaCl to produce NaHCO3 and ammonium chloride (NH4Cl). The overall reaction can be given as shown below: i. NaCl(aq) + CO2(g) +NH3(aq) + H2O(l) NaHCO3 + NH4Cl ii. CaCO3 CaO + CO2 (both the CaO and the CO2 are needed in the process) iii. NH4Cl(aq) + 0.5 CaO(s) NH3(aq) + 0.5 CaCl2(aq) + 0.5 H2O  The final... important part of the...
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The world price of copper
5 pages (1250 words)
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...Copper Number: ial Time: This report aims to address the following Use economic analysis to explain the changes seen in the price of copper over this period; and (2) Explain why there were such large fluctuations in price as seen in the graph. Table of Contents Abstract 2 World Price of Copper 4 Reference List 9 The World Price of Copper The development of copper metallurgy has been one of the most significant breakthroughs in the history of human life (Joseph and Kundig, 2001, p. 1). It has been viewed by early settlers as of equal importance with the discovery of fire and has contributed greatly to the historical, cultural, and economic development of early civilizations... ?The World Price of Copper...
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Chile and copper mining
4 pages (1000 words)
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...Copper Mining Introduction Chile has recently been on the headlines due to its copper mining disaster. This disaster has brought this country to the spotlight – highlighting its history and its economic status amidst the current global economic crisis. This paper shall discuss Chile as a country and its copper mining industry. This paper is being undertaken in the hope of gaining a comprehensive and academic understanding of Chile as a state. Discussion Chile is located in South America and is one of the continent’s most prosperous countries1. Throughout the years, it has not encountered much social unrest except for the bloody coup seen in 1973 under the reign of dictator Augusto... Chile and...
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Current Applications And Development Of Catalyst For The Synthesis Of Highly Functional Organic Carbonates
13 pages (3250 words)
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...carbonate synthesis. Romano et al. synthesized dimethyl carbonate by subjecting methanol to oxidative carbonylation using copper chloride salt as catalyst (1). This two step reaction is given in the equations 1 and 2. (1) (2) Various other patents report dimethyl carbonate synthesis using various other catalysts and reactions. The use of platinum halide or complexes with alkali/alkali earth metal halides in a continuous gas phase reaction CO and alkyl nitrites has been reported. In this reaction, the yield of dimethyl carbonate was found to be 70-80% (1). In a similar reaction, aromatic hydroxyl compound...
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Rocks and Minerals
2 pages (500 words)
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...Copper mineral ores is mined for copper. Vast mountain areas are quarried for chalcopyrite, malachite and cuprite. Conglomerate Conglomerate is a large chunk of rock that has different minerals or rock types embedded to it. This is a type of sedimentary rock that is commonly found I beaches, rivers, and glaciers. Pebbles and small rocks are the major components of a conglomerate rock. Quartz is the most common mineral of pebble so is conglomerate. Iron oxide, calcium carbonate and silica are also tied together with all the components. Conglomerates doesn’t have much of industrial use, instead it is use as decoration. Conglomerates are mines in, Australia, United States and Ireland... Rocks and...
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Ionic Reactions
3 pages (750 words)
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...copper (II) nitrate and sodium carbonate cannot be explained by solubility table/rules. Theoretically... November 04, Experiment # Ionic reactions Purpose: The purpose of the experiment is to get acquainted with the ion exchange reactions then move on to learning how to write balanced chemical equations, highlighting both spectator ions and ions taking part in the reaction. Before finally, learning net chemical equations and explain their meaning from the positions of the theory of electrolytic dissociation. STEP SUBSTANCE REAGENT RESULT INFERENCE 1 Co(NO3)2 cobalt (II) nitrate Na3PO4 Red precipitate Co3(PO4)2 is insoluble in water 2 NaI NA CoI2 is soluble in water 3 Na2SO4 NA CoSO4 is soluble in water 4 ...
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Environmental Geology
2 pages (500 words)
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...carbonate minerals? Give three examples of metal sulfide minerals that have commercial value (provide names and chemical formulae). Give example locations where these sulfide minerals have been extracted. Sulphide and Sulphate minerals both consist of the element Sulfur. The Sulphate/sulfate minerals are the salts of sulfuric acid. They are very rarely found and are subjected to locality of the region. Sulphates constitute of the anion SO4-2 (Geosci). Sulfide or sulphide minerals are compounds of sulfur comprising of other metals, which may... Environmental Geology Teacher’s Today’s and Period Assignment Environmental Geology Q. 1. What are the differences between sulfide minerals, sulfate minerals and c...
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Over 30 Workers Trapped After Chilean Copper Mine Collapse
4 pages (1000 words)
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...Copper Mine Collapse When it comes to dealing with many people, in an audience, it is extremely crucial to figure out what is going to be said to them and how it shall be done. It is also necessary to know how much shall be said to them. Sometimes the audience may be willing to hear all the information but lacking the capacity to handle the magnitude of the information, (O’Rourke, 2010). This is because the information may be carrying a weighty message to the audience. Therefore, it becomes exceedingly important to prepare the audience mentally and send the sensitive information with a lot of caution. Information is powerful. It can have devastating effects if it is not handled... were...
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Copper Price Rises in UK after Chile Strike
9 pages (2250 words)
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...copper, then the increase of wages. If we are to analyze, if you have the majority of the shares, then you are considered as one if not the pillar of a certain company. However, we cannot discredit the fact that workers are also considered as pillar of the company which is infact they are considered as the workhorse and the frontline in making money. In the case of Escondida, BHP Hilton, has the share above anyone else that is why BHP Biliton can be considered as the main stakeholder in the said mining activity. To further understand... Considering the fact that BHP Biliton is the majority owner of the said mining (Escondida) firm, and the workers are demanding for high income due torise of prices of...
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Over 30 workers Trapped After Chilean Copper Mine Collapse
4 pages (1000 words)
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...COPPER MINE COLLAPSE According to Whelchel and Dauble, Chile, mine collapse that happened on 5 August 2010 trapped over thirty workers inside the mine (2011). The workers in Chile were working at the gold and copper San Esteban mines, near Copiapo city when the mine collapsed. The mine was about 300meteres deep from the ground surface. As the excavation process continued to rescue the trapped workers, another collapse happened two days later hence, halting the rescue process. Therefore, the process became more challenging and the government of Chile had to be very careful on the information communicated from the collapsed San Esteban mine. The rescue team had to drill... ? WORKERS TRAPPED AFTER CHILEAN...
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DOUBLE REPLACEMENT AND REACTION
1 pages (250 words)
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...Copper (II... DOUBLE REPLACEMENT AND REACTION a) No. The reaction of Silver Nitrate and Magnesium chloride will not complete because all the reactants will not react to form products. The Silver ions Combine with chloride ions to form Silver chloride which is insoluble .The formation the precipitate then shows that the reaction is not complete. (b)Yes. The reaction between Barium hydroxide and Nitric (V) acid will complete because the Nitric acid in the reaction reacts and completely dissociates to form Hydroxyl ions in solution. Hence due to its complete dissociation; the reaction is termed as complete. The balanced equation for the reaction is: Ba(OH)2+2HNO3→Ba(NO3)2+2HOH (c)No. The reaction between Co...
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Solar Collector mirror
1 pages (250 words)
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...copper that is positioned at focus (Plhak, 2011). Conduction with copper heats the water passing through the pipe. Mirror is bent by heating it. Attempting to bend... Solar Collector Mirror Metal that is the easiest to bend and has the highest reflective ability is freshly deposited silver (Emsley, 2001, p. 394). A typical flat plate collector is essentially a metal box that has a plastic cover or glass on top whereas the bottom is made up of a dark-colored absorber plate. To minimize heat loss, the collector’s bottom and sides are mostly insulated (flasolar.com, n.d.). Concentrators can be made with parabolic trough design to reflect the sun’s energy and concentrate it over a single collector pipe of c...
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The Open-Pit Mine Project of Rosemont Copper Company
4 pages (1000 words)
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...Copper Company Rosemont Copper company isan Arizona based mining company whose main focus is mining copper. The company has a rich history in the mining sector. The controversial issue that surrounds the company at the moment regards the open-pit mining project whose site is south of Tucson in the Santa Rita Mountains. The name of the specific area is Helveita mining district. The vast reserves of copper in the area were discovered by two entrepreneurs in 1875. The first mining companies to explore the area were Omega Copper Company and Columbia Mining & Smelting Company (USDA Forest Service 7). However, the area came to a shut-down after the mine... ?(Insert The Open-Pit Mine Project of Rosemont Copper...
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Anti-copper Therapy among Pregnant Women Can Lower the Risk of Wilsons Disease in Their Children
3 pages (750 words)
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...copper Therapy among Pregnant Women Can Lower the Risk of Wilson’s disease in Their Children Unborn children are vulnerable to their mother’s health condition, the medical intervention using anti-copper therapy, especially to expectant women, can reduce the probability and risk of transmitting Wilson disease to the fetus. Despite the rare cases of Wilson disease, they are a number of children being diagnosed with the infections. It is a recessive and it as a result of copper toxicity. It affects the brain, liver and also it creates substantial effects on the excretory system. It leads to accumulation of copper in the body due to the failure of binary excretion (Walshe, 124). Therefore... , the...
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Anti-copper Therapy among Pregnant WomenCan Lower the Risk of Wilsons Disease in Their Children
9 pages (2250 words)
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...copper Therapy among Pregnant Women Can Lower the Risk of Wilson’s Disease in Their Children A Hypothesis Since the unborn children are vulnerable to their mother’s health condition, the medical intervention using anti-copper therapy, especially to expectant women, can reduce the probability and risk of transmitting Wilson disease to the foetus. Introduction Despite the rare cases of Wilson disease, there are quite a substantial number of children being diagnosed with the infections. This autosomal disease is really recessive and it is a consequence of copper toxicity, basically affecting the liver and brain. As a result of ATP7B gene mutations, it creates substantial effects... on the...
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COPPER ORE CONCENTRATE SITE OPERATIONAL AND LOGISTICS RISK ASSESSMENT - (DESK BASED REVIEW)
25 pages (6250 words)
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...Copper Concentrate Storage & Load-Out Facility Risk Review - British Colombia 1. Introduction – General Information TCM (Thompson Creek Metal) is a developing, diversified North American mining company. It is operating in the Mt. Milligan copper and gold mining facility, which is located in BERG, British Columbia. It is under construction and development phase. It is situated nearly 90 miles northwest of Prince George in central British Columbia, Canada. The 1st phase of the concentrator started on August 15, 2013. The very next month, in September 2013 it entered into the production of copper-gold concentrate, leading to the first truckload... ? Table of Contents Introduction – General...
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Does the amout of Solution effect the Crystalization of Copper Sulfate
5 pages (1250 words)
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...Copper Sulfate? The purpose of this investigation is to determine how concentration affect rate of crystallization of copper Sulfate. The variable in these experiment include; strength or concentration of copper sulfate which is an independent variable, rate of crystallization in a certain period of time which is a dependent variable, temperature as controlled variable and the size of containers and the volume of solution as constants. The hypothesis to verified in this experiment can be stated as; Increase in concentration result in increase in the rate crystallization In this experiment, copper sulfate solutions with varying concentration... ? Does Concentration affect the Rate of Crystallization of...
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COPPER ORE CONCENTRATE SITE OPERATIONAL AND LOGISTICS RISK ASSESSMENT - (DESK BASED REVIEW)
25 pages (6250 words)
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...Copper Concentrate Storage & Load-Out Facility Risk Review - British Colombia 1. Introduction – General Information TCM (Thompson Creek Metal) is a developing, diversified North American mining company. It is operating in the Mt. Milligan copper and gold mining facility, which is located in BERG, British Columbia. It is under construction and development phase. It is situated nearly 90 miles northwest of Prince George in central British Columbia, Canada. The 1st phase of the concentrator started on August 15, 2013. The very next month, in September 2013 it entered into the production of copper-gold concentrate, leading to the first truckload... Table of Contents Introduction – General...
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Chemistry assignment
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...carbonate -b) calcium carbonate - e) ammonium sulphate - c) potassium phosphate - f) barium nitrate - 2. Write equations for the following reactions, making sure that they are properly balanced. State symbols must be included. a) Potassium hydroxide and nitric acid react together in solution to form potassium nitrate solution and water. b) When heated in a stream of chlorine gas, aluminium metal forms solid, aluminium chloride. c) Lead nitrate and potassium bromide solutions react together to form a precipitate of lead bromide and aqueous potassium... FORMULAE/MOLES/MOLARITY FORMULAE & EQUATIONS Write formulae for the following compounds: a) magnesium chloride - d) sodium hydrogen...
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Global Climate change abstract
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...carbon dioxide affects the reproduction of calcifying organisms. Acidification of the water also causes increased levels of nutrients, zinc, copper and toxic metals affecting the ecosystem. Climate Change Earth’s energy balance refers to the balance of solar radiation and the energy that radiates to space that affects the earth’s temperature. The solar constant, which is 1,367 watts per square meter, measures the amount of solar electromagnetic radiation. Received radiation on Earth depends on seasons and distance of the surface from the sun. Albedo is a measure... Global Climate change The Carbon Cycle Global warming is mainly attributable to the rising levels of carbon dioxide. The Keeling Curve,...
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Geology
5 pages (1250 words)
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...Copper exists in three forms (Cu, Cu2 and CuO) and together with iron, are mostly found in carbonate rocks which are formed through a prolonged process of chemical reactions. These metals are also found in sandstones and shales which are sub-crustal rock formations (Press, 2004 p 71)4. Evaluating mineral deposits across the globe is an arduous task since it is difficult to effectively determine the presence of a metal in geographically expansive lands; some not even inhabited by mankind. These metals exist in common forms, what makes the difference is the actual quantity of elements, which eventually determines the metal to be formed. Geologists analyse data got from samples... ? Geology Introduction...
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Terminating Fiber Optic Cable Using a Polish Method ,Testing Wired Media Both Copper and Fiber
2 pages (500 words)
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...Copper and Fiber Terminating Fiber Optic Cable Using a Polish Method For termination of fiber optic a connection must be provided to a device, for instance to a wall outlet or other equipment that will allow for connecting the cable to other additional cables or systems/devices. Additionally, the basis of fiber optic termination is to generally assist fiber cross-connection and light wave signal’s supply. In addition, suitable fiber optic termination will protect the fibers from dirt or damage as it is used to avoid extreme loss of light, thus, it makes a network more reliable to implement more smoothly as well... it vertical to the polishing surface. Now at this time we will place a sheet...
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Undergrad research (Sonicator)
2 pages (500 words)
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...carbon while using less energy. The use of Sonification makes it possible for synthesis of methanol via the use of carbon dioxide and hydrogen, which leads to the water-gas shift formation and surface morphology effects. However, because the use of carbon dioxide and hydrogen is a two-way step, Sonification has eased this process to a one-way issue. The one-way involves the addition of copper metal, which makes the production of methanol increase and the aspect of rate-determining step. Conclusion Methanol synthesis is a process... Undergrad research (Sonicator) Introduction Sonication refers to the action of applying sound energy to disturb particlesin a given sample for different purposes. Ultrasonic...
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Properties of Gases
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...Carbon dioxide gas can be generated through the reaction of a metal hydrogen carbonate or a metal carbonate and dilute mineral acid (Hill, Graham, and John 31). The reaction between sodium hydrogen carbonate and dilute hydrochloric acid is as shown below: NaHCO3(s) + HCl (aq) NaCl (aq) + CO2 (g) + H2O (l) The presence of gaseous products can be tested by use of appropriate confirmatory tests. Oxygen gas is characterized by rekindling a glowing splint. Hydrogen gas burns with a ‘pop’ sound... ?Joe Smith Experiment 2 14 October Properties of gases Purpose of the experiment The experiment was meant to identify various gases by investigating their physical and chemical properties. Introduction Some chemical...
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Chemistry and Computer Science
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...copper and aluminum to transmit the electrical signal. Copper and aluminum are elements from the periodic table. Ceramics are also used in the electrical components that are usually made up of zinc oxides, magnesium carbonate, silicates, silicon oxides, aluminum oxides, etc ("The Important of Chemistry in Computer Technology"). All these compounds are characterized as the chemicals. They are made through chemical processes in chemical and extraction industries. Plastics are also massively used in making the circuit boards... Chemistry, Computers and Computer science Chemistry has a relation with every aspect of the life that deals withthe matter. Matter is everything around us. It can be solid, liquid...
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Write an illustrated essay discussing the main lithological units present within the Troodos ophiolite (Cyprus) and the magmatic, tectonic and hydrothermal processes which created this section of oceanic lithosphere. Is there any evidence that would ques
10 pages (2500 words)
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...carbonate compensation. Since then, the sediment preserved is largely siliceous. The Carbonate sediment started to move to the Cretaceous end. That was a point in time when the ophiolite’s western end was raised as compared to its eastern end because the oldest sediments of carbonate were more towards... The primary lithological units found in the Troodos ophiolite in Cyprus, the tectonic, hydrothermal, and magmatic processes that formed this portion of oceanic lithosphere Introduction: Study of ophiolites helps in the development of concepts about the formulation of oceanic lithosphere. The main challenge encountered in the study of ophiolites is that they are no more active. Because of this fact, eviden...
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Applications and Development of Catalyst for the Synthesis of Highly Functional Organic Carbonates
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...carbonates and are explained in the study. These metals include aluminum, chromium, cobalt, magnesium, manganese, lithium, zinc and copper with varying catalytic efficacies. The catalytic effects of chromium porphyrins in influencing cyclic carbonates formation from CO­2 and epoxides led to the development of a copolymerization scheme that formed polycarbonate from the combination of (TFPP)CrCL and another catalyst like DMAP. Zinc, Cobalt and other metals also have catalytic properties and have been studied extensively in terms of efficacy and application (Wang et al, 2006). One... Presented by: here. of Department of Chemistry. Introduction of the Research Problem. Synthesized polymers are no doubt some...
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Unknown compound
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...carbonate ions, these anions form gases that readily evolve from the solution upon addition of strong acids (equation 1 and 2). CO32- + 2H+ H2CO3 ……………1 H2CO3 CO2 + H2O …………….2 Acidification of sulfide ion produces hydrogen sulfide gas (equation 3) S2- + 2H... Identification of Cations and Anions in a Solution Chemistry Lab Report March 4, Qualitative analysis and conductometry, which is a measurement of electrolytic conductivity, are the commonly used methods for identifying cations and anions present in unknown solutions. The two methods were employed to achieve the main objectives of this experiment, which included identification of cations, and anions present in an unknown solution. When employing...
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Properties of an element
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...copper. Silver dioxide batteries are preferred by many due... SILVER (Ag) By of The chemical symbol for Silver is Ag. It is derived from the Latin word Argentum. Silver is a transitional metal that is well known for its high electrical conductivity, reflectivity and thermal conductivity(Hill, 2009). The metal can occur naturally in its pure form or as an alloy with other metals such as gold. Silver has been used for thousands of years. The metal was used to make ornaments and utensils. The value of the metal enabled its use as a legal tender for the exchange of goods and services. When the Roman government reigned as the world super power in the first century, history has shown the economy at the time...
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Troodos ophiolite: formation and composition
9 pages (2250 words)
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...carbonate compensation. Since then, the sediment preserved is largely siliceous. The Carbonate sediment started to move to the Cretaceous end. That was a point in time when the ophiolite’s western end was raised as compared to its eastern end because the oldest sediments of carbonate were more towards... ?The primary lithological units found in the Troodos ophiolite in Cyprus, the tectonic, hydrothermal, and magmatic processes that formed this portionof oceanic lithosphere Introduction: Study of ophiolites helps in the development of concepts about the formulation of oceanic lithosphere. The main challenge encountered in the study of ophiolites is that they are no more active. Because of this fact,...
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You choose the topic
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...carbonate, phosphate and silicate (Eriksson and Olsson 5). In this project we want to address beneficiation as one of the aspects... Chemical beneficiation process of obtaining rare earth elements Rare earth elements are becoming increasingly important in the material industry for various applications for example in United States where they are used as automobile and petroleum refining catalysts, in phosphors in color television and flat panel displays, permanent magnets, and rechargeable batteries for hybrid and electric vehicles among other applications ( Humphries 6). Rare earth elements are grouped into two major categories; the first category belongs to a group called lanthanides which contains 15 ...
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Domestic Bathtubs
6 pages (1500 words)
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...copper, cultured marble, fiberglass, granite, and porcelain on steel. Acrylic bath tubs normally chip and crack. Therefore, this material is reinforced by fiberglass to make it resistant. However, it is cost effective and light in weight thus allowing easier mass production. Bath tubs made of cast iron are very costly and heavy in weight. Manufacturing bath tubs with cast iron involves creating a mold according to the desired design, and then melting iron and pouring it into the mold. Though they are expensive, they have two big advantages: many chemicals... and then the finished product is delivered and placed in position. The biggest advantage of constructing bath tubs using tiles is that...
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Why is there oil in Angola What is the geology of the Area How and when did the land form The common point with other african countries with oil
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...carbonates that have been instrumental in offering the exploration of minerals that are associated with carbonates such as the rare earths and the fluorites. Along certain parts of Angolan pre Cambrian shield, there has been found the occurrence of fold belts that are three in number. This fold belts have been found to be associated with ores such as polymetallic copper of the copper belt type (Fullagar, West & National Science Teachers Association 2011). Angola’s important gas and oil reserves are mainly hosted... Geology of Angola s Introduction Angola is located in Africa’s southern parts on the Atlantic coast. In Africa, it isthe second largest producer of oil after Nigeria. Due to the recent...
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Atomic Theory Webquest
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...copper (II) carbonate. Proust showed that this compound always had 5.3 parts copper to 1 part carbon to 4 parts oxygen (Joseph Louis Proust). 3. a. What is the law of multiple proportions The law of multiple proportions is a statement that when two or more elements form more than one compound, the mass ratios of the elements in the compounds are simple whole numbers of each other. b. How is different from the law of definite proportions? The laws of definite proportions and multiple proportions have something to do with Dalton’s Atomic Theory. The difference is that the former... a. What is the law of conservation of mass? The law of conservation of mass s that themass of a given system does not change...
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Chemistry exercises
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...Copper Cu: 23 g Cu20 or 24g of Cu2S ?  Ans. Mr of Cu20 = 143g 143g  127g of Cu i.e. 23g20.43g of Cu Percentage of Cu in 23g of Cu20= 20.43X100 = 88.8% 23 Mr of Cu2s = 159.06 159.06 127g of Cu i.e. 24g19.16g of Cu Percentage of Cu in 24g... CHEMISTRY the following compounds:  a) SiF4: Silicon tetrafluoride b) CaF2: Calcium fluoride c) NH4CI: Ammonium chloride d) (NH4)3(P04 Ammonium phospate e) PCL5: Phosphorous pentachloride f) H2S04: Sulphuric acid  2) For the reaction: 2AgN03 + BaCl2 ► 2AgCl + Ba(N03)2  If a solution containing 41.6g of AgN03 is mixed with a solution that contains 35.4g BaCl2:  a) which reagent is limiting and which in exc...
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Protein Quantification
11 pages (2750 words)
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...copper sulphate 1 g sodium citrate up to 100 ml with purified water Solution B: 20 g sodium carbonate 4 g sodium hydroxide up to 1 L purified water Procedure: Required: The Protein standard solutions F,G, H, I and J, 18 glass tubes, blank(water), three... PROTEIN QUANTIFICATION By: Presented BCA assay method: Reagents: BCA reagent Solutions: Solution A g sodium bicinchoninate (BCA) 2 g sodium carbonate 0.16 g sodium tartrate 0.4 g NaOH 0.95 g sodium bicarbonate up to 100 ml with purified water pH adjusted to11.25 with 10 M NaOH Solution B: 0.4 g cupric sulphate pentahydrate in 10 ml purified water. BCA reagent: 100 volumes of solution A to 2 volumes Procedure: Required: The Protein standard solutions D...
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Fireworks
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...carbon based compounds, or metals. Phosphorous is also added to some fireworks for its glow in the dark... ?Fireworks Introduction Fireworks are a group of pyrotechnic devices invented by the Chinese Sung dynasty. They have been used for public displays, personal entertainment and religious purposes. They have also been used in agriculture to scare off birds. The composition is mainly of highly combustible and explosive compounds that combine to produce the effects of brilliant colors, sound and smoke. 2) Properties The properties of firework explosions are force, velocity and heat. The combusting components undergo rapid entropic change, and thus this lends to the term “firework explosion.” The forces...
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Zinc
6 pages (1500 words)
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...carbonate: It is also called carbonic acid and zinc spar. It has a formula of ZnCo3, made up of zinc, carbon and oxygen. It has CAS number 3486-35-9. 3. Zinc sulphate: It has oxygen, sulphur and zinc. The formula is ZnsO4. The CAS number is 7733-02-0. Casewell... ?INTRODUCTION TO ZINC: Zinc has its origin form the German word “Zin” which means Tin. Zinc is found in the group IIb in the periodic table. Zinc is a transition metal having a lustrous blue white appearance. At the ordinary room temperature, the appearance of zinc is crystalline and brittle. But it varies with different temperatures, as the appearance becomes ductile when heated at ranges 110-150 °C. Zinc is a reactive metal that was first...
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Environmental Studies
6 pages (1500 words)
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...carbonates which is in the form of a mineral called calcite. The places where limestone forms overtime in abundance usually comprise of shallow, warm, marine waters, which is exactly the kind of environment that is required by organisms to form a kind of calcium carbonate shell and skeleton and extract the essential ingredients from the ocean water. These organisms soon die out and their shell and skeletons accumulate and settle to form a type of biological sedimentary rock. This rock will contain at least fifty percent calcium along with a multitude of other minerals and materials, namely; Quartz, clay minerals, feldspar and a few more. There are several...
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Surface analysis
8 pages (2000 words)
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...copper (Cu), palladium (Pd), and nickel (Ni) surfaces. The process... ?Surface Analysis and Materials Science Introduction Klauber and Smart (2003) declared that the primary objective of materials science is to develop materials which possess specific mechanical, electrical, magnetic, optical, thermal, and chemical properties. Such materials are required to be exhibit stability under normal environmental conditions. The behaviour of a material’s surface as it reacts to its environment is important because it reveals how well-suited a particular materials performs its intended function. For example, corrosion in metal is prevented through the use of specific chemicals; various optical effects on lenses...
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Positron emission tomography
4 pages (1000 words)
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...Carbon and Glucose. A radioactive substance is attached to the chemical entity and metabolism of the respective chemical in the targeted site is observed. PET Mechanism: The basic principle of a PET scanner lies within a radiopharmaceutical, such FDG that contains the positron fluorine-18. This positron combines with an electron, which is then converted into two gamma rays that travel into two opposite directions. The gamma rays are detected by scintillators on the scanner ring that produces light detected by a photomultiplier. Data from the numerous gamma ray detection events are converted... Introduction to PET Positron emission tomography (PET) is a nuclear medication imaging method that generates a...
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Ecology and sustainability
8 pages (2000 words)
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...carbonate stones which are used as building materials upon acid deposition. Though stainless steel and aluminum are more resistant to acid rain, other materials such as carbon-steel, nickel, zinc, copper, paint, and some plastics, paper, leather, and textiles are vulnerable to corrosion by acid rain. (b) List 2 specific measures to reduce the acid rain problem in an economic manner. b.1. Clean Air Act amendments required that power plants make significant cuts in sulfur dioxide and nitrogen oxides emissions (by installing "scrubbers" in their smokestacks and switching to low... 1) In what forms is nitrogen (N) found in sewage? Briefly discuss three (3) reasons why excessive quantities of nitrogen can be...
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