INTRODUCTION For this experiment we studied an oxidation-reduction reaction of magnesium and hydrochloric acid solution. We compared the experimental measured amount of a product and the amount predicted by the theoretical calculation of a balanced equation: Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g) PROCEDURE First we obtained a strip of pre-cut magnesium ribbon‚ cleaned it with steel wool to remove any signs of oxidation from the strip (which would alter our results)‚ and then weighed it (individual
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Acidity’s effects on Fruit Browning Aim: To test whether the acidity of the surface area of an apple has an effect on the rate of enzymatic browning over 70 minutes. Hypothesis: the more acidic the surface area the longer it takes for the fruit to oxidise. Variables: Independent: acidity of surface area of the apple Dependent: the progression of melanin (brown pigment) after 70 minutes Controlled/fixed: time of day‚ knife used to cut fruit‚ portion of fruit‚ environment
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Bleach Oxidation of 9-Hydroxyfluorene The purpose of this experiment was to oxidize an alcohol (9-hydroxyfluorene) to a ketone (9-fluorenone) using aqueous sodium hypochlorite (bleach) as the oxidizing agent‚ while introducing techniques used in microscale experiments. Reaction: Results 1. Recrystallized Product Yield Product yield = (actual yield/theoretical yield) x 100% 3mL 9-hydroxyfluorene x (1mL/1000mL) x (0.09 mol/L) = 2.7 x 10-4 moles 0.05g 9-fluorenone / (180.20g/mol) = 2.77 x 10-4
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http://www.imbaenergyclub.gr/2012/10/10/green-marketing-from-theory-to-practise/ By Karolos – Konstantinos Papadas PhD Candidate in Marketing‚ AUEB It has been noticed that during periods of recession or social change‚ megatrends such as “quality movement” (1970’s)‚ “globalization” (1980’s) and the internet (1990’s) emerge. In recent years‚ governments‚ NGO’s and agencies have been informing the citizens about the harmful consequences of human activity on the environment. Environmentalists are
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Illustrating the Oxidation States of Mn & V © KCl http://hk.geocities.com/fatherofchemistry Procedure © KCl http://hk.geocities.com/fatherofchemistry Discussion Part A: Making Mn(VI) from Mn(VII) and Mn(IV) 1.> Explain why only one of the three mixtures reacted to give green Mn(VI). [ANS] By Le Chatelier’s Principle‚ only the alkaline medium will shift the equilibrium to right and yield green MnO42-. 2.> What happened when acid was added
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this essay‚ I will briefly review the history‚ definition of Green IT‚ approaches to implement green IT with examples‚ benefits and costs of Green IT. History and Definition of Green IT History of Green IT started with energy star program in 1992 which was designed to encourage and recognize the energy efficiency in the monitors and printing product. Green IT was emerged shortly after the energy star program and the goals of green IT are to reduce the use of hazardous materials‚ maximize energy
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Green Technology: Future of power generation NEED FOR GREEN TECHNOLOGY Recently concluded Copenhagen conference on climate change and green house emission expressed concern over the amount of CO2 being released. This would in turn heat up the atmosphere and cause global warming that will result in the melting of glaciers and hence the sea level will rise that is a threat to several coastal cities of the world. So one can imagine how the amount of CO2 emissions can cause problems of displacing
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What is green building? As the global climate warming‚ more and more people focus on building energy efficiency. There is more awareness that CO2 produced by building energy use is the main source of climate warming. Energy-saving buildings become inevitable trend of development‚ the green building also arises in time. Green building can be define as to the construction of the whole life cycle‚ for maximize resource conservation (epa.gov‚ 19/12/2012). It includes energy saving‚ land saving‚ water
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Green IT For Good Corporation (What‚ Why‚ and How) Rebecca Wulankayes (1240002643) What? Green Information Technology (IT) has become an important topic in IT management research and practice in the last years due to economic opportunities and increasing pressure from stakeholders according to several researchers. Although it has been a common topic‚ the understanding of the coverage and the scope is still missing. Some researcher also prefer the term of “Green IS”. Watson et al. (2010)
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Green technology can be defined as any technology that is friendly to the environment; it may also be called clean technology. The field of "green technology" encompasses a continuously evolving group of methods and materials‚ from techniques for generating energy to non-toxic cleaning products(Green Technology 2010) Green technology can be found almost anywhere and some examples of green technology are‚ green energy‚ green building‚ green chemistry‚ and green nanotechnology. Green energy can be
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