construct a table listing the reduction potentials of a series of metal ions in order of ease of reduction. The series of half-cells is constructed by placing a piece of metal into a 1.0 M solution of its ions for each metal in the series. The metals are Cu‚ Fe‚ Pb‚ Mg‚ Ag‚ and Zn. The half-cells are connected by a salt bridge constructed of a strip of filter paper soaked in a solution of KNO3. The zinc half-cell is used as the reference standard and assigned an E of 0 volts‚ and all reduction potentials
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este o companie multinationala‚ cu activitati in 13 tari si avand o puternica baza operationala in regiunea Marii Negre si a Marii Mediterane. Complexitatea si numarul proiectelor executate la nivel global‚ de-a lungul timpului‚ au facut din Rompetrol cea mai cunoscuta marca romaneasca pe plan international. Sediul social al firmei ROMPETROL SA se afla in Bucuresti‚ Calea Victoriei nr.222‚ bl.D6‚ sector 1‚ iar capitalul social al firmei este de 174536868.7 lei noi. Cu o cifra de afaceri de aproximativ
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leadership development opportunities for members. It is a community for people committed to positive change to gather for inspiration‚ support‚ motivation‚ help‚ and real world leadership training. CU Rotaract is a force of good in the Boulder community and in the world. The Rotaract Club is not only a CU student group dedicated to service in just the University or Boulder‚ but it is also dedicated to service on a national and international community level. Nancy Glock-Gruenich stated in her article
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dry tube. Add a piece of copper metal into this solution. Add 5ml of 0.1 M solution. Record your observations 2. Add 5ml of 0.1 M Cu(No3)2 to each tube. Place of strip of Zn and Pb in each tube. Record your observations 3. Repeat step 2 using 0.1 M Pb(NO3)2 and strips of Cu and Zn. Record your observations 4. Repeat the step again using 0.1 M Zn(NO3)2 and strips of Cu and Pb. Reaction of
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inadvertently produce undesired products that must be filtered or decanted out of solution (Petrucci et al‚ 2007). Beginning with pure copper wire‚ this experiment will exhibit its transformation to substances including Cu(NO3)2‚ Cu(OH)2‚ CuO‚ CuSO4 . 5H2O and finally returning to pure copper (Cu). The experiment objective is to successfully complete these conversions and then calculate the percentage of recovered copper using the initial and final mass data obtained. Procedure Please refer to "Experiment
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rates). The most famous example is the European Union (EU). Trade creation occurs when some domestic production in a union is replaced by lower-cost imports from another member nation. This increases specialization in production and welfare in the CU. A trade-creating customs union also increases the welfare of nonmembers because some of the increase in its real income spills over into increased imports from the rest of the world. Trade diversion occurs when lower-cost imports from outside the
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BSc Logistics and Supply Chain Management SCHOOL OF BUSINESS BSC LOGISTICS AND SUPPLY CHAIN MANAGEMENT Programme Overview The BSc Logistics and Supply Chain Management programme offered by the School of Business at SIM University (UniSIM) aims to develop human capital and talent to meet the needs of the industry. This is the first undergraduate programme dedicated to the study of logistics and supply chain management to be offered by a Singapore university. Partnering with the Singapore
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#5A: NaOH(aq) + Mg(NO3)2(aq) 2 NaNO3(aq) + Mg(OH)(s) Observations: The solution turned slightly cloudy. Reaction #6A: Na2SO4(aq) + BaCl2(aq) Na2Cl2(l) + BaSO4(s) Observations: The solution turned white and cloudy. Reaction #7A: Na2SO4(aq) + Cu(NO3)2(aq) CuSO4(aq) + 2NaNO3(aq) Observations: The solution was slightly tinted blue due to the copper‚ but it
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strip‚ nothing happened. Adding the Cu strip did not affect the solution or the strip. (Strip stayed orange. The solution was still clear.) When we added the‚ nothing happened. The solution stayed clear and the strip stayed grey. When we added the Ag strip‚ nothing happened. The strip remained light grey and the solution was clear. Zn(NO3)2 aq When we added the Mg strip‚ the strip became dark grey (opposed to the regular grey before) Adding the Cu strip did not affect the solution or
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Pb(NO3)2 0.1M x 0.05L x 331.22gmol-1= 1.6561 g Cu(NO3)2 0.1M x 0.05L x 230.02 gmol-1 = 1.1501 g OBSERVATIONS Mg(NO3)2 Zn(NO3)2 FeSO4 Pb(NO3)2 Cu(NO3)2 Mg Metal Dark tiny substances (presumably Zn metal) dull the surface of Mg ribbon. Solution remains clear Tiny dark chunks of Fe metal formed on Mg surface. The yellow color of solution eventually fades Very small black bits of Pb metal formed on Mg ribbon surface Small amounts of Cu metal bits on Mg surface was observed‚ the intensity
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