Preview

Electrolysis Scientific Experiment

Good Essays
Open Document
Open Document
5889 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Electrolysis Scientific Experiment
6/15/2012 Somerset College | Charlese Conolly | Science 2012 | Could electrolysis be used to determine the comparative reactivity of metals? |

Science 2012 | Could electrolysis be used to determine the comparative reactivity of metals? |

Contents COULD ELECTROLYSIS BE USED TO DETERMINE THE COMPARATIVE REACTIVITY OF METALS? 2 BACKGROUND 2 Electrolytic and Galvanic corrosion: 3 AIM 5 HYPOTHESIS 6 VARIABLES 6 APPARTATUS 7 DIAGRAM 8 METHOD / PROCEDURE 8 RESULTS 11 Tables 11 Graphing 13 DISCUSSION 14 Graph 1 / 2(Volume of Hydrogen Produced): 14 CONCLUSION 16 EVALUATION 17 Strengths 17 Weaknesses and Improvements: 17

COULD ELECTROLYSIS BE USED TO DETERMINE THE COMPARATIVE REACTIVITY OF METALS?
BACKGROUND
Definitions and Uses:
Electrolysis:
Electrolysis is the electrochemical process where a direct current (DC) drives a non-spontaneous chemical reaction, assisting with the process of chemical decomposition. The electrolytic process requires an: 1. 2 Electrodes: An electrical conductor/terminal (usually metallic) through which electric current passes. They drive the electrolytic reaction by 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 ions (Anions) move away.
[Electrodes for this experiment are firstly copper and secondly galvanized steel]
(Wikipedia Editor , 2012) (Wikipedia Editor , 2012) (Columbia Electronic Encyclopedia, 2007)

2. Direct Current:



Bibliography: Bloggers . (2011, Dec 12). Chemisty 29 . Retrieved June 1 , 2012, from Blogspot : http://chemistry29.blogspot.com.au/ Britanica Elcyclopedia Chic Project . (2010 ). The Electrolysis Process . Retrieved June 2, 2012, from Chic 2 : http://chic-project.eu/technology/hydrogen-production/the-electrolysis-process Columbia Electronic Encyclopedia Google Cooperation . (2012 ). Google Dictionary . Retrieved June 2 , 2012 , from Google : http://www.google.com.au/search?hl=en&q=electrolyte&tbs=dfn:1&tbo=u&sa=X&ei=0OnYT7G1Jqa3iQeViaCpAw&ved=0CGgQkQ4 Kasco Marine Princeton . (2008). Corrosion . Retrieved June 2, 2012, from Word Net : wordnetweb.princeton.edu/perl/webwn Sorum, A Wikipedia Editor . (2012, May 24 ). Chemical Decomposition. Retrieved June 2, 2012, from Wikipedia : http://en.wikipedia.org/wiki/Chemical_decomposition Wikipedia Editor Wikipedia Editor . (2012, May 23). Electrode . Retrieved June 2, 2012, from Wikipedia : http://en.wikipedia.org/wiki/Electrode Wikipedia Editor Wikipedia Editor . (2012, May 16). Galvanic Series . Retrieved June 3, 2012, from Wikipedia : http://en.wikipedia.org/wiki/Galvanic_series Wikipedia Editor Wiktionary Editor . (2012, March 11 ). Electrolyte . Retrieved June 1 , 2012, from Wiktionary : http://en.wiktionary.org/wiki/electrolyte Your Articles

You May Also Find These Documents Helpful

  • Good Essays

    Nt1310 Unit 9 Final Paper

    • 506 Words
    • 3 Pages

    Electroplating is the process of coating a metal object with a thin layer of another metal by means of electrolysis.…

    • 506 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Electrochemical cell is when a redox reaction is used to convert chemical energy into electrical energy with the help of oxidation and reduction reaction. These consist of two vessels (connected by a salt bridge/porous pot), two electrodes (made of different materials) and the electrode on which oxidation takes place is called the anode (or – ve pole) and the electrode on which reduction takes place is called the cathode (or + ve pole), two electrolytic solutions and a salt bridge. The electrolytes are taken in by half – cells.…

    • 1562 Words
    • 7 Pages
    Better Essays
  • Satisfactory Essays

    chem 1045

    • 358 Words
    • 2 Pages

    a non-electrolyte is a substance that does not conduct an electric current in aqueous solution…

    • 358 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Reprocudtive Health Bill

    • 1286 Words
    • 6 Pages

    How does a voltaic pile make electricity? The key to electricity is the movement of electrons. In a voltaic pile, electrons move from one metal to the other through the saltwater solution. The saltwater solution is called an electrolyte, and it contains ions in solution from the dissolved salts. An ion is a group of atoms that carries a positive or negative electric charge. The ions react with the metals, causing an electrochemical reaction, a special kind of chemical reaction that makes electrons.…

    • 1286 Words
    • 6 Pages
    Good Essays
  • Good Essays

    In this lab we attempted to use electrochemistry to extract metals from ionic compounds in solution. In order to extract a metal from a solution, we had to use electrochemistry. To get the copper out of the solution, we used a battery to get an electric current to go through the solution and cause an electron transfer. Because the copper is a cation and the nickel plates had a negative charge when the electricity was flowing, the copper was attracted to the nickel plates and therefore the copper became neutral. We can conclude that the copper gained 2 electrons because the copper was separated from the copper sulfate solution and then coated one of the nickel…

    • 450 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Chemistry

    • 390 Words
    • 2 Pages

    Complete a data table that includes a prediction of reaction type (single replacement, double replacement, synthesis, decomposition, or combustion), observations, and identification of reaction type for each reaction in the lab. (10 points)…

    • 390 Words
    • 2 Pages
    Good Essays
  • Good Essays

    1. A cation is an atom that has (lost/gained) an electron, giving it a (positive/negative) electrical charge.…

    • 949 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Lab of Electrolytes

    • 608 Words
    • 3 Pages

    Ionic substances form when a metal reacts with a non-metal. They contain charged particles called ions. Those ionic substances are broken down by electrolysis. Electrolysis is the breakdown of a substance by electricity, and it only happens in liquids. The liquids that can be electrolyzed are called electrolytes. When said electrolyzed, means that the compounds in solutions are broken down when they conduct electricity. Its necessary the use of electrodes since it conducts the electricity to the solution. The electrodes are needed to be an anode, which receives the negative ions, and the cathode, which receives the positive ions.…

    • 608 Words
    • 3 Pages
    Good Essays
  • Good Essays

    As the group number decreases, reactivity increases. As the period increases, the most reactive is towards the bottom. The alkali metals (Group 1 metals) are identified as the most reactive of all present elements on the periodic table. Seeing as potassium and sodium are both found in group 1, this will suggest that potassium will be the most reactive metal. Additionally, potassium should be more reactive than sodium as its single valence electron is placed more distant from the nucleus than sodium, meaning less energy is needed to remove the valence electron, therefore meaning the reactivity is higher.…

    • 603 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Mummification Report

    • 1779 Words
    • 8 Pages

    I am going to explain what Ions are including Cations and Anions because it is the background information needed to carry out this investigation. An ion is an atom or molecule which the total number of electrons isn’t equal to the total number of protons giving the atom a positive or negative electrical charge. When an atom is attracted to another atom because it has an unequal number of electrons and protons, the atom is called an Ion. If the atom has more electrons than protons this means that it’s a negatively charged ion or Anion. Different anions include carbonate, fluoride, nitrate and oxide. Cations are particles with a positive charge and are formed when one atom loses electrons whereas anions have particles with a negative charge and are formed when an atom gains electrons. The purpose of these experiments I am going to carry out is to…

    • 1779 Words
    • 8 Pages
    Good Essays
  • Better Essays

    Periodic Trends

    • 1605 Words
    • 7 Pages

    The process of removing an electron from an isolated atom (or an ion) to form a cation.…

    • 1605 Words
    • 7 Pages
    Better Essays
  • Powerful Essays

    Cathodic Protection System

    • 4461 Words
    • 18 Pages

    Metallic corrosion is an electro-chemical reaction in which the metal combines with a non metal, such as oxygen, to form a metal oxide or other compound. This depends upon the nature of the environment. Different metals have different tendencies to corrode, activity or potential. These potentials can be tabulated and form the electro-chemical series. A more practical approach is the determination of the tendency of certain metals to corrode in a particular electrolyte, such as sea water. This is termed the galvanic series of which the following table is an abridged form. Active or Anodic Magnesium Zinc Mild Steel Wrought Iron Cast Iron Ni-Resist 18.8.3% Molybdenum SS,…

    • 4461 Words
    • 18 Pages
    Powerful Essays
  • Satisfactory Essays

    Process used: The key process of electrolysis is the interchange of atoms and ions by the removal or addition of electrons from the external circuit. The desired products of electrolysis are often in a different physical state from the electrolyte and can be removed by some physical processes. For example, in the electrolysis of brine to produce hydrogen and chlorine, the products are gaseous. These gaseous products bubble from the electrolyte and are collected…

    • 841 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    Electrolysis is a method using a direct electric current to drive a non-spontaneous chemical reaction. It involves the stage in the separation of elements from naturally occurring sources such as ores.…

    • 875 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Electrochemistry is a branch of chemistry that studies chemical reactions which take place in a solution at the interface of an electron conductor and an ionic conductor and which involve electron transfer between the electrode and the electrolyte or species in solution.…

    • 374 Words
    • 2 Pages
    Satisfactory Essays