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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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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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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Education is the ONE thing that no one can take away from you‚ except yourself. Waiting for superman stirs up various discussions about our public school system in our country today. Stopping us from becoming the most prominent education system are the barriers for ensuring that children receive a high quality education. But we can improve this by finding great leaders in the Education department from the US‚ state‚ and local government and also start children earlier with their education‚ also
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Differentiate among the major types of economic systems. The roles that individuals‚ businesses‚ and government play in allocating a society resources depend on the society’s economic systems‚ the basic set of rules for allocating resources to satisfy its citizen’s needs. Economic systems are generally categorized in three major types as free market systems‚ planned systems and mixed economy. The free market means that economic decisions are taken by private individuals and firms. Everything
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The Seven Major Ethical Systems David Lawter Axia College of the University of Phoenix Throughout the history of the human race‚ men and women have struggled with determining the difference between good and bad actions. For example‚ if you are walking through a crowded store and the person in front of you drops some money on the floor‚ you have to make a decision whether to pick it up and walk away or to return it to the person that dropped it. For most people‚ their morals‚ that have been
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Implementing a Change Implementing a change in any field is a difficult task because not all individuals of the organization are accepting of change. When an organization restructures the goal is to have a positive effect on production‚ staff‚ and efficiency. When considering restricting management should consider all advantages and disadvantages to avoid a conflict. For example‚ SSI technologies‚ a manufacturer of gift cards‚ mailers‚ and paper advertisements is a company can be very profitable
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Int. J. Business Performance Management‚ Vol. 5‚ No. 1‚ 2003 1 Implementing performance measurement systems: a literature review Mike Bourne* and Andy Neely Centre for Business Performance‚ School of Management‚ Cranfield University‚ Cranfield‚ MK43 0AL‚ UK E-mail: m.bourne@cranfield.ac.uk *Corresponding author John Mills and Ken Platts Centre for Strategy and Performance‚ Institute for Manufacturing‚ University of Cambridge‚ Mill Lane‚ Cambridge‚ CB2 1RX‚ UK Abstract: Currently‚ there
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Implementing Change Paper Crystal Powers HCS/475 – Leadership and Performance Development April‚ 22‚ 2013 Linda Hagler-Reid Implementing Change Paper This paper will explain the managers’ role within a company and their responsibility when implementing a change within a company. It’s not just the planning and organizing talking about what plans need to be placed in order to create a change in a company‚ but the manager must know what to expect and how to completely deal with staff to make
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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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