Electrochemistry

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  • Electrochemistry Lab Report

    Exploring Electrochemistry Aim: The Aim of this experiment is to investigate electrochemistry including spontaneity, conductivity, galvanic cells and lead-acid cells. Spontaneous reactions will be explored by observing the two reactions below: Zn(s) + Cu2+(aq) →Zn2+(aq) + Cu(s) Zn2+(aq) + Cu(s) → Zn(s) + Cu2+(aq) Conductivity will be explored through measuring the conductivity of water and water with salts. A galvanic cell will be constructed to investigate the two halves of a redox reaction and their purpose in generating voltage. Lastly, a lead-acid battery will be constructed to investigate their uses to light a light bulb. Introduction: Imagine a world without electrochemistry, you may think this isn’t quite such a big deal. Now…

    Words: 1370 - Pages: 6
  • Floating Slimes Essay

    Silver, lead, arsenic, bismuth, antimony, selenium, and nickel are common impurities existing in copper anodes. Some impurities dissolved from the anodes can precipitate, if their concentrations in the electrolytic solution are above saturation levels. Some of these precipitates can settle down but some are floating slimes and can be a source of cathode contamination by their incorporation into the cathode 16. These floating slimes are amorphous and typically have compositions of Sb-As-O and…

    Words: 1864 - Pages: 8
  • Compare The Construction And Operation Of A Ni-Cad Battery With A Lead-Acid Battery

    Q1. Describe the construction and operation of a Ni-Cad battery. Compare and contrast the Ni-Cad battery with a Lead-Acid battery. a. Construction: figure 1. Ni-cad battery construction Ni-Cad battery refers to Nickel-cadmium battery which is widely used in industrial world. Basically, the Ni-Cad battery consists of positive and negative plates, separators, electrolyte, cell vent, and cell container. The positive plate in Ni-Cad battery is Nickel Hydroxide Ni(OH)2. However, the negative…

    Words: 1065 - Pages: 5
  • Schematic Principles Of The Principle Of Electro Chemical Machining

    Fig. 1.1 Schematic principle of Electro Chemical Machining (ECM) 1.2 Principle of ECM Electrochemical machining removes material from the work piece by electrochemical process. The working principle is anodic dissolution in which the work piece as anode and the tool as cathode. Both electrodes are immersed in the electrolyte and electrical applied to these electrodes. The electric conduction is achieved through the movements of ions between the anode and cathode through the electrolyte. The…

    Words: 920 - Pages: 4
  • Electrochemical Cell Experiment

    │Cu2+ ( M ) ││ Cu2+ ( M) │ Cu(s) was determined to be 0.566 V while the Kf value was determined to be 3.52 x 1014. The E cell value in the electrochemical cell Pb(s) | Pb 2+ (0.10 M) | | Pb 2+(2.40 x10-4 M) | Pb (s) was determined to be 0.107 while the Ksp value was determined 5.54 x 10 -11 According to the first law of thermodynamics, during a chemical reaction, energy is produced, this energy can be converted into heat, work, or a mixture of heat and work. By…

    Words: 1122 - Pages: 5
  • Zinc-Copper Electrochemical Cell Affect The Energy Potential

    How does a variation in the concentration of metal ions of the cathode in a Zinc-Copper electrochemical cell affect the electrical potential? Introduction: In a highly technological and quickly developing society, it is imperative to innovation that basic components are understood and explored to further expansion and advancement. In order to understand how everyday necessities such as cars, computers, and cell phones are constantly powered, it must first be understood what is in a battery as…

    Words: 1164 - Pages: 5
  • Copper Nitrate Lab Report

    Then add in another 3.751 ± 0.001g of Cu(NO3)2 crystals in order to increase the concentration from 0.1M to 0.2M. Once again record the voltage produced. Repeat this procedure until a concentration of 0.5M copper (II) nitrate solution has been achieved. After this remove the contents of the Cu(NO3)2 beaker, and recreate a 0.1M solution. Repeat steps 8-11 for another 4 trails, continually increasing the concentration by 0.1M and recording the results. After all necessary data was…

    Words: 1229 - Pages: 5
  • Battery Essay

    function and send ions from the cathode back to the anode. Batteries are chemical components that make life easier and increase the use of technology every day. They are like fuel to a car. They keep electrical appliances alive and they are very reliable. The examples given explained hoe the battery works and the ways in which the electrons flow to produce a functioning battery. It is also stated above that not all batteries can be recharged due to the fact that they weren’t structured for…

    Words: 1958 - Pages: 8
  • The Effects Of High Organature Proton Exchange Fuel Cells

    High temperature proton exchange membrane fuel cells (HT-PEMFCs) are a promising clean technology, especially for automobile applications.1 These devices generate electricity from the chemical reactions that occur in the anode side of the cell, using H2 as a fuel and generating heat and water as by-products.2, 3 However, experimental studies using HT-PEMFCs show that degradation of the cell can occur after certain hours of operation (around 500 hours).4 Some of the factors that contribute to the…

    Words: 1485 - Pages: 6
  • Single Nannoparticles On Gold (Au) Ultramicroelectrode Lab Analysis

    ABSTRACT Current response of ascorbic acid-stabilized copper (Cu) single nanoparticles (NPs) collision on gold (Au) ultramicroelectrode (UME) surface was observed by the electrocatalytic amplification method. When the applied potential to the UME was 0.4 V, blip (or spike) response of current, which is responsible for the self-oxidation of Cu NP, was obtained. When the applied potential was over 0.5 V, the blip response combined with staircase response was obtained. The blip part indicates the…

    Words: 1087 - Pages: 4
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