Coursework 4 Copper Name of student: Alfiya Ospanova Tutorial group: G Copper is one of the earliest elements explored by humanity. Due to the special red shade it was easy to find in ancient times. The metal was named according to place where it was found‚ the Cyprus islands. Copper produced in massive stars and spread in the world as minerals like chalcocite and chalcopyrite (sulfide of copper)‚ azurite and malachite (carbonate of copper)‚ cuprite (oxide of copper). The
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------------------------------------------------- ABSTRACT ------------------------------------------------- The copper reaction experiment was demonstrated by adding the reagents like 16M HNO3‚ Distilled water‚ 6M NaOH‚ 6M H2SO4‚ Acetone‚ Zinc metal and Methanol into the beaker with the copper wire. The experiment was also demonstrated to observe how copper reacts while different reagents were being added. It was also demonstrated to practice the common laboratory techniques such as methods
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Running head: ACID RAIN AND ITS EFFECTS Acid Rain: The Killer Rain Twanda Banks Grantham University April 5‚ 2011 Abstract Every time you turn on the television or take a ride in a car‚ you could be contributing to a problem called acid rain. Acid Rain is a serious problem with devastating effects. Every day this problem increases. Many believe that this issue is too small to deal with‚ but if the acid rain problem is not met with head on‚ the effects on people‚ plants‚ animals‚ and the
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What is Chemical and Process Engineering? The branch of Engineering which is concerned with processes in which materials undergo a required change in composition‚ energy content or physical state at a reasonable cost and in the safest possible manner. History of Chemical Engineering For all intents and purposes the chemical engineering profession began in 1888. While‚ the term "chemical engineer" had been floating around technical circles throughout the 1880’s‚ there was no formal education
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workplace‚ these are my findings. CHEMICAL HAZARD Sulfuric Acid is used in the chemistry lab. Ths is a highly corrosive‚ dense‚ oily liquid‚ H2SO4‚ colorless to dark brown depending on its purity and used to manufacture a wide variety of chemicals and materials including fertilizers‚ paints‚ detergents‚ and explosives. It is also called oil of vitriol‚ vitriol. Sulfuric acid reacts vigorously with water to form several hydrates. The concentrated acid‚ therefore‚ acts as an efficient drying agent‚ taking
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40 Common Minerals and Their Uses Aluminum The most abundant metal element in Earth’s crust. Aluminum originates as an oxide called alumina. Bauxite ore is the main source of aluminum and must be imported from Jamaica‚ Guinea‚ Brazil‚ Guyana‚ etc. Used in transportation (automobiles)‚ packaging‚ building/construction‚ electrical‚ machinery and other uses. The U.S. was 100 percent import reliant for its aluminum in 2012. Barium A heavy metal contained in barite. Used as a heavy additive in oil
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is a measure of organic carbon in a sample; TOD is a measure of the amount of oxygen consumed by all elements in a sample when complete (total) oxidation is achieved. In a COD analysis‚ hazardous wastes of mercury‚ hexavalent chromium‚ sulfuric acid‚ silver‚ and acids are generated. Methods Section 5220C and Section 5220D reduce these waste problems but may be less accurate and less representative. (See ¶ 2 below.) 1. Selection of Method The open reflux method (B) is suitable for a wide range of wastes
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BRONSTED-LOWRY ACIDS AND BASES 1. The Bronsted-Lowry definition There are many definitions of acids and bases in existence‚ but the most useful one is the Bronsted-Lowry definition: An acid is a substance which can behave as a proton (re presented as a hydrogen ion‚ H+) donor. Any substance which contains hydrogen bonded to a more electronegative element can thus behave as an acid: HCl == H+ + Cl- H2SO4 == H+ + HSO4- A base is a substance which can behave as a proton acceptor. Any
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Table 8.1- Combustion of magnesium ribbon Observations Reaction was exothermic; magnesium ribbon burned and was glowing a bright white color when ignited. Reactants: Mg and O2 Products: MgO Balanced chemical equation 2Mg + O2 2MgO Table 8.2- Combustion of heptane Observations When holding test tube inverted over heptane flame‚ condensation formed against top walls of the test tube. When the burning splint was added the walls of the test tube became less foggy from the condensation
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whole-numbered coefficients? a) 1 b) 2 c) 3 d) 4 5. Calcium phosphate reacts with sulfuric acid to form calcium sulfate and phosphoricacid. What is the coefficient for sulfuric acid when the equation is balanced usingthe lowest‚ whole-numbered coefficients? a) 1 b) 2 c) 3 d) none of these 6. What is the molar mass of calcium permanganate? a) 159 g/mol b) 199 g/mol c) 216 g/mol d) 278 g/mol 7. What is the molar mass of aspartic acid‚ C4O4H7N? a) 43 g/mol b) 70 g/mol c) 133 g/mol d) 197 g/mol 8. How many
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