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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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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heat CuO + H2O 4) CuO + H2SO4 Cu2+(aq) + SO42-(aq) + H2O 5) Cu2+(aq) + Zn Cu + Zn2+(aq) Stage 1- Dissolution of Copper Mass of vial & copper = 3.537g Mass of vial = 2.505g Mass of Copper = 1.032g Moles of copper = mass (g) ÷ (63.5g/mol) = 0.0162 mol (3s.f) Copper description: Initially‚ the copper was a solid that was cut into thin strips. It had a shiny/metallic and opaque look‚ with an orange colour. HNO3 description: The nitric
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Research question/Aim Extract copper from copper oxide by reduction using butane gas Hypothesis The butane gas will reduce the copper oxide and leave behind pure copper. This will allow us to find the empirical formula of the copper oxide as well as the masses of oxygen and copper Variables Dependant variable The dependant variable will be the reduction of the copper oxide which will be calculated at different temperatures. Independent variable The independent variable here
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Copper Sun By Sharon M. Draper Ch. 1 (V) Betrothed: engaged to‚ be married Amari and Besa had been formally betrothed to each other last year. Kente: A colorful fabric of Ghanaian origin Their fingers flew as they chatted together‚ the pale fibers stretching and uncurling into threads for what would become kenet cloth. Ch. 1 (Q) “Be content with woman’s work child. It is enough.” I think this is a memorable quote in which got me thinking of how different women’s and men’s jobs where and
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Percent Copper and Formula of a Copper Compound Sofia Economides Date Preformed: 3/19/2012 Date Submitted: 3/26/2012 Lab Partners: Anita Smith‚ Taylor Bell‚ Derek Bourgeois 1. Purpose a. To determine the percent of copper and the formula weight of a copper compound. 2. Introduction a. Magnesium is a very active metal which can reduce copper (II) ions in a weight sample of a compound to metallic copper. The reduction of copper ions in a compound to a copper metal
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03/13/2013 Edward’s Restaurant and Sir George’s Catering Case Analysis General Environment Demographic: Industry: Demographic factors are favorable to the restaurant industry. Approximately 52% of the 1993 population in the area was 60 years of age or over. This was considered the restaurant’s main target market. During the late 1980s and early 1990s‚ the number of people taking up permanent residence in the valley increased dramatically for various reasons. The climate was attractive
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Joseph’s Story A. Risk Factors: Family history of vascular disease Weight gain Working long hours Stressed at work Not sleeping well Started to smoke cigarettes again Eating fatty foods Putting all his risk factors together can stress out the heart and circulation of blood vessels that help maintain a homeostasis of the body. When the body cannot produce or reproduce cells that help keeps the body in order they fight other cells which deteriorate and die when they cannot the reproduce vitamins
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San Francisco has become the first major American city to prohibit fast-food restaurants from including toys with children’s meals that do not meet nutritional guidelines. The city’s Board of Supervisors gave the measure final approval Tuesday on an 8-3 vote. That’s enough votes to survive a planned veto by Mayor Gavin Newsom. The ordinance‚ which would go into effect in December of next year‚ prohibits toy giveaways in fast-food children’s meals that have more than 640 milligrams of sodium‚ 600
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Operations……………………………………………………………………...…6 * Hours of Operation………………………………………………………………7 * Employee Training…………………………………………………………….…7 * Systems and Controls………………………………………………………….…7 * Food Production…………………………………………………………………7 * Delivery and Catering………………………………………………………….…7 * Compensation and Incentives……………………………………………………7 * Management to be Added……………………….…………………………….…8 * Management structure and Style……………………………………………...…8 * Ownership…………………………………………………………………………8 * Long
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