Course Hero Logo

Voltaic Cell Lab.docx - Running Head: Lab Experiment:...

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 1 - 4 out of 11 pages.

Running Head: Lab Experiment: Voltaic Cells1Lab Experiment: Voltaic CellsSCH4U, ChemistryDate
Lab Experiment: Voltaic Cells2IntroductionAn electromagnetic reaction is any process that accompanies or causes movement of anelectric current and most times the movement of electrons is involved. In oxidation–reductionreactions the movement of electrons is involved. In a redox reaction the flow electrons is fromthe oxidized reactant (reducing agent) to the reduced reactant (oxidizing agent). Usually,oxidation occurs at the anode and reduction at the cathode.If oxidation-reduction reactions areseparated by a wire, the movement of electrons, instead of taking place in the surface of themetal (electrode), takes place in the external wire separating the two half-reactions causing ageneration of current. This leads to a voltaic (galvanic) cell[Boc11]. This is the basis of operationof a battery.The two oxidation-reduction reactions are put separately in two different containers forexample in beaker and is referred to as a half-cell. Commonly, a half-cell consists of an electrode(metal) immersed in a solution that has its ions. The electrodes are connected using a wire. Thecircuit that sits between the two halves is called a salt bridge and allows for electrical contactbetween the two. Helps the half cells to maintain their neutrality as ions flow in and out of thebridge[Sha83].VariablesDependent Variable: Flow of Electric Current.Independent Variable: The Electrolyte used.Controlled Variable: Electrodes used.
Lab Experiment: Voltaic Cells3

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 11 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Winter
Professor
N/A
Tags
Electrochemistry, Redox, voltaic cells, electrode potentials, Eocathode

Newly uploaded documents

Show More

Newly uploaded documents

Show More

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture