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Electrochemical Cells - Electrochemical Cells This...

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93Electrochemical CellsThis experiment was developed and written by J. MarchCopyright© 2012, Department of Chemistry, University of Alabama at BirminghamPRE-LAB INSTRUCTIONSIn the TextbookUse the index of your textbook to identify background reading materialrelating to: Electrochemical cell(s); Electrodes; Electrolysis;Electrolyte(s); Electron(s) in redox reactions; Reactions (oxidation-reduction); Metal displacement reactions.Review other laboratory experiments where you prepared solutions ofvarious concentrations,i.e., prepared solutions by diluting a stocksolution.In Your NotebookOutline a procedure in your own words that will allow you to collect therequired data for each of the exercises below.Anticipate the type of datayou will collect and prepare space in your notebook to record the data(data tables or space for observations).Before arriving at the laboratory you should have the answers to thefollowing questions in your notebook.1.Show the equation you will use to calculate the volume of 1 MCu(NO3)2(aq) needed to prepare a set of solutions that haveconcentrations in the range of 1 M to 1x10-4M in a 10-mL volumetricflask.2.Write the reduction half-cell reaction for the copper(II) ion.3.What is the standard potential for an electrochemical cell that isprepared from a copper half-cell and a zinc half-cell?4.If the cell potential is negative, which electrode is connected to theanode?5.Where does the oxidation half-reaction occur, the cathode or theanode?For Your SafetyYou must wear your goggles whenever you are in the laboratory.The aqueous metal salt solutions may irritate your skin.In case of contactwith the skin, wash the affected area with lots of water.Make sure you wash your hands before leaving the laboratory.All solutions may be disposed down the sanitary sewer with lots of water.Metal wire or foil must be washed with plenty of water, dried, thenreturned to the stock bottle.Do not put any solid metal in the trash.ObjectivesAfter this laboratory experience you should be able toxexperimentally confirm the relative reducing ability of five metalsxdescribe the relationship between concentration and cell potentialxdemonstrate that you can make decisions about experimentalmethods
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Chapter 19 / Exercise 19.6
General Chemistry
Ebbing/Gammon
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We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
General Chemistry
The document you are viewing contains questions related to this textbook.
Chapter 19 / Exercise 19.6
General Chemistry
Ebbing/Gammon
Expert Verified

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