Factors affecting Galvanic Cells

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Factors affecting Galvanic Cells

Problem:  If and how changes in the solutions as well as their concentrations affect the voltage in a galvanic cell?

Variables:         

  • Independent:
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  • Type of solution used: Cu(NO3)2, Zn(NO3)2, Pb(NO3)2
  • The concentration of the each solution.

  • Dependant:
  • The mass change in the cathode and anode

  • Controlled
  • The amount of time
  • The metals used for both rods
  • The temperature of the solutions

Materials:

  • Power supply
  • Voltmeter
  • Zinc and Copper metal rods
  • Circuit wire
  • Beakers
  • Salt Bridge
  • Sand Paper
  • Crocodile clips
  • Graduating Cylinder
  • Cu(NO3)2, Zn(NO3)2, Pb(NO3)2
  • Weight Scale

Procedure:        

  • Set up a beaker with 300 mL of 1M Cu(NO3)2
  • Set up the voltmeter ...

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