CHAPTER 5 CONCLUSION AND RECOMMENDATION 5.1 Introduction This chapter will conclude the result of this experiment‚ whether it has fulfill its objective and the recommendation for future research to get better efficiency in yield of FAME by manipulating the concentration and weight percent of the active metal. 36 5.2 Conclusion In this research‚ the objective are to determine the effect of concentration of KOH to yield of FAME and also to determine the effect of KOH weight percent as loading
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John Abarshi Mr Meinsma Chemistry December 14‚ 2010 Conductivity of Ionic solutions Introduction This lab report is about the conductivity of ionic solutions. In class we have been discussing wether all ionic solutions conduct equally well. If an solvent solution conducts electricity‚ then it must contain ions. So measuring the conductance of solutions can tell you whether the solutes in the solution are dissociated into ions. (Conductivity) Any type of solution‚ even ionic solutions‚ provide
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Chronoamperometry is one of several electrochemical techniques which quantify the oxidation or reduction current of electroactive molecules at an electrode. Oxidation or reduction can be induced by changing the applied voltage at the working electrode. The concentration of the electroactive molecules is proportional to the current produced by their oxidation or reduction‚ which allows one to determine the concentration of electroactive neurotransmitters and other biological molecules of interest
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1) What is Electro-Plating? Electroplating is the process of coating a metal object with a thin layer of another metal by means of electrolysis. 2) What is Copper Plating? Copper plating is a coating of copper metal on another material‚ often other metals. Plating is designed to increase durability‚ strength‚ or visual appeal‚ and copper plating specifically is often used to improve heat and electrical conductivity. 3) What are the uses of electro-plating/copper plating? Electroplating
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HSC Chemistry Assessment Task 1 Production of Materials Task Type: First Hand Investigation Weighting 20% Due Date: Friday 22nd November during your normal chemistry period. Task Type: Hand in + First Hand Investigation Assessment Task Context The first battery or voltaic cell (later named a galvanic cell) was made by Alessandro Volta‚ his discoveries led to the first working batteries. Over time the chemistry and construction of a battery has been refined‚ and society has become
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Before we start‚ you should first understand that not all batteries will be the same. Flooded cell lead acid batteries are the most commonly found in electric and gas golf carts‚ and you can also find them in utility vehicles and electric vehicles. If you have another battery type like Gel‚ AGM or Lithium‚ the chemistry will require a specialized procedure that differs from those that have been outlined. Understand Batteries Having a basic understanding of batteries and how they work and behave
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Relationship of Chromium (Cr) mobility in soil and pH value using Electrochemical Method Siti Khadijah C.O. 1‚ Sabariah A.2‚ 3Zuliziana S.‚ Jestin Jelani4‚ Nordila A.5 1‚3‚4‚5 Lecturer‚ Civil Engineering Department‚ Faculty of Engineering‚ Universiti Pertahanan Nasional Malaysia 2 Lecturer‚ Faculty of Civil Engineering Universiti Teknologi Mara‚ Selangor‚ Malaysia Email : sitikhadijah@upnm.edu.my Abstract: Heavy metal contamination may provide a better indication of the potential risk
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As time goes on‚ technological advances require more efficient sources of power. At the forefront of research for these power sources are hydrogen fuel cells. This power source takes in the most abundant element in the universe‚ Hydrogen‚ and yields immense power without combustion or pollution. The three aspects of this scientific breakthrough are the fuel cells‚ hydrogen production‚ and hydrogen storage. Fuel cells are the devices with which Hydrogen is made into electricity. These use a
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6. a) ∆G’°=-RTlnKeq’=-8.315Jmol∙K×298K×ln1.97=-1.68 kJ/mol b) ∆G’=∆G’°+RTlnglucose-6-phosphate fructose-6-phosphate=-1.68kJmol+8.315Jmol∙K×298K×ln0.51.5 =-4.40kJ/mol c) ∆G’° is the standard energy change at the given temperature and fixed concentration of chemicals in the reaction. (For this reaction‚ both glucose-6-phosphate and fructose-6-phosphate are at 1M) . In contrast‚ ∆G’ is a variable energy change for different sets of reactant and product concentrations‚ which can be calculated
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1. Citric Acid * Citric acid is a weak organic acid with the molecular formula C6H8O7‚ which means a molecule of the acid contains six carbon atoms‚ eight hydrogen atoms‚ and seven oxygen atoms. When it is dissolved in water‚ it partially ionizes to yield three H+ ions (hydrogen atoms which are missing their electron) and a C6H5O7(3-) ion (the 3- means that it has three extra electrons.) The resulting solution is called an "electrolyte." Chemical Reaction When two dissimilar metals are put
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