3rd‚ 2009 Lab Report #3: Copper Cycle Abstract: The purpose of the experiment is to cycle solid copper through a series of five reactions. At different stages of the cycle‚ copper was present in different forms. First reaction involves reaction between the copper and nitric acid‚ and copper changed from elemental state to an aqueous. The second reaction converted the aqueous Cu2+ into the solid copper (2) hydroxide. In the third reaction Cu(OH)2 decomposed into copper 2 oxide and water when heated
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Rocks containing copper compounds (such as copper carbonate) are called ‘copper ore’. Copper is extracted from copper ore by a series of chemical‚ physical‚ and electrochemical processes. Ores can be classed as ‘high grade’ or ‘low grade’ depending on the percentage of copper compounds (e.g. copper carbonate) they contain. After mining‚ the ore is crushed‚ roasted‚ smelted and then electrolysed to extract the copper. Suggested Equipment Boiling tube Samples of different carbonate ores‚ containing
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increased manufacturing‚ inventory and distribution costs. The proposed JITD system required the distributors to share their sales data with Barilla‚ who would then forecast and deliver appropriate amounts of products to the distributors at the right time in order to effectively meet demand. This was a radical change from the current and more traditional supply-chain setup where the distributors were not sharing any data and could place orders at will. Vitali’s proposal came under severe criticism from
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The Effect of pH Level of a Liquid on the Rate of Corrosion of Copper wire In this experiment‚ I will be testing the corrosion rate of copper wire after leaving them in different liquids with different pH levels. By doing so I will be able to determine which pH level corrodes copper the fastest. I will conduct this experiment by pouring 250mL of different liquids with different pH levels in cups‚ followed by an iron strip placed into the cup. A stopwatch will be timing how long it takes the iron
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Twenty Four: A study of time in Doctor Faustus The Tragicall History of the Life and Death of Doctor Faustus‚ referred to simply as Doctor Faustus‚ is a play by Christopher Marlowe written in the late 16th century‚ based on the Faust story‚ in which a man sells his soul to the devil for power and knowledge. The idea of an individual selling his or her soul to the devil for knowledge is an old motif in Christian folklore‚ one that had become attached to the historical persona of Johannes Faustus
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Fabulicious Catering Service Introduction Fabulicious Catering Service plans to specialize in catering for weddings and parties. We advertise online but we do have a physical store to make our runs. Our company will be a business to customer and brick to mortar model providing professional and courteous service at a reasonable price. Customers may use our website to order and our store will make the delivery and set up for the delivery. Our motto will be: “We serve to please”. Fabulicious
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------------------------------------------------- Boxed lunch catering A box lunch is a lunch consisting of a sandwich‚ chips‚ fruit and a dessert. A box lunch is typically prepared by a caterer and dropped off to a location for a client’s dining needs. Box lunches are used primarily in the corporate arena for working lunches when they do not have time to take a break from their meeting yet still need to eat. A box lunch order is placed with a caterer a couple of days before the delivery date and
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Mining Assignment #4 By Siyuan Wei‚ Yifei Pei‚ Amrita Sur and Clinton Huynh Mineral: Copper Dip: 60 Depth: 650m Location/Terrain: Under River Chosen Mining Method: Sublevel Stoping - Sublevel Stoping is designed for mineral deposits which consists of fairly stable rocks and have a steep dip. - This method is quite commonly used to mine copper at varies sites around Australia. For example‚ Mount Isa‚ Olympic Dam etc… Mining Process - Sublevels are created within the solid
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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 atomic
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A Sequence of Chemical Reactions: Transforming Copper Briefly describe. a) Why must you carry out the oxidation of Cu with HNO3 in a fume hood? Concentrated nitric acid is a toxic oxidant. Avoiding skin contact or inhalation is highly important. The reaction between Cu and HNO3 produces NO2‚ a toxic brown gas; therefore working under the fume is necessary in order to prevent inhaling the toxic gas. b) Why you should be particularly careful when you work with 3 M H2SO4 solution? Sulfuric acid
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