ions present in copper(II) sulphate solution. b)What would you expect to observe in Beakers A and B when a current is flowing through the circuit? c)Identify the cathode in Beaker A and the anode in Beaker B. d)Write an ionic equation to represent the reaction occurring at the cathode in Beaker A and the anode in Beaker B. e)Two industrial applications of electrolysis are purification and anodising. (i) Explain how an impure sample of copper can be purified 3.The circuit in Figure 2 can be used
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negative barrier potential voltage. A limiter circuit uses two diodes in generating the clipped waveform. The diodes are then placed in parallel connection with one another. It is in a certain orientation wherein one diode has the anode facing up while the other anode is facing down. Because of this said orientation‚ the two diodes won’t be switched on at the same time. A clipper diode works in a way that when the positive half wave enters‚ the first diode is in forward bias‚ when the negative half
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Sample D –TEACHER INSTRUCTIONS I.B. CHEMISTRY : PRACTICAL ELECTROCHEMISTRY INVESTIGATION : INVESTIGATE THE RATE OF ELECTROPLATING A METAL D DCP CE Goggles and Lab coats must be worn Background Students had been taught ‘Electrochemistry’ as outlined in the IB Chemistry syllabus. Investigation Design an experiment that allows you to investigate a variable affecting the rate of electroplating. Your research question must be focussed and specific and must enable you to carry out your experiment safely
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Electrodeposition Coating Process for Automobile Bodies* By Yoshiaki 0YABU‚** Nobuo FURUNO‚*** Yoji HIRASAWA*** and Hiroshi OMORI **** Synopsis The earlier electrodeposition processwas mainlypursuitedfor the quality control in terms of mass production. However‚ the coating efficiency was picked up to be a serial problemfrom a standpoint of the harmony between natural circumstancesand human’s living-life conditions and the recovery usage of the paint was earnestlysearched. This trend
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AIM TO STUDY THE VARIATION OF CONDUCTANCE WITH CHANGE IN DISTANCE‚MOLARITY AND TEMPRATURE. CERTIFICATE I have the pleasure to certify that RAGHUVANSH SINGH BHALLA student of class XII (Science) of J.D. Tytler School has persuade his work and prepared the dissertation on the topic. To study the variation of conductance with change in distance‚ molarity and temperature . Under my supervision and guidance‚ this is being submitted for
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CHAPTER ONE INTRODUCTION A. STATEMENT OF THE PROBLEM This study aims to find out how long a lemon (Citrus limon) can last as a lemon battery powering a digital clock. B. HYPOTHESIS The researcher assumes that one lemon would last for a day or two and that the usage of more lemons would entail a longer battery time. C. OBJECTIVES Specifically‚ it aims to: 1) come up with a quantity-longevity ratio with the use of a varied quantity of lemons in the production of a lemon battery 2) find
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completing the circuit between the DC source and the electrolyte. An electrode In any electrochemical process is referred to either the Cathode and Anode Cathode: the electrode which becomes positively charged. During the process‚ negatively charged ions (Anions) move towards the electrode whilst positively charged ions (Cations) move away. Anode: Electrode which becomes negatively charged. During the process‚ positively charged ions (Cations) more towards the electrode whilst negatively charged
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VINEGAR (ACETIC ACID) AS ALTERNATIVE BATTERY Battery or more precisely‚ a cell – is a device in which the reaction between two substances can be made to occur in such a way that some of the chemical energy is converted to useful electricity. Since its invention‚ the battery has become the most common power source for many household and industrial applications. There are many ways to construct a battery‚ as well as ways to control its generated output. This Home-made Vinegar Battery is a battery
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penny & a galvanized nail are used for this ’battery’. Copper & zinc are REQUIRED for this process‚ but not a penny & a nail per se. A potato works well‚ but a tomato‚ lemon or other citrus fruit can be substituted. The zinc and the copper are the anode and cathode terminals of your potato battery. Using ordinary hook-up electrical wire‚ you can use the potato to create a voltaic cell‚ which will power a VERY small bulb. A light emitting diode (LED) will work fine. A side note here about voltage
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Chapter 1 The Problem-And It’s Background Potato as an alternative battery for scientific calculator is the chosen topic of the researchers. The researchers thought of many topics but the topic about the scientific calculator get their attention. They thought that scientific calculator is very useful to students especially to 4th year students. A scientific calculator is a type of electronic calculator‚ designed to calculate problems in science‚ engineering‚ and mathematics. They have
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