A titration, as you may recall, allows students to learn more about an unknown solution by reacting it with a second solution of known molar concentration. There are a number of ways to measure the progress of a reaction. In this experiment, students will investigate a potentiometric titration in which the electric potential of a reaction is monitored. Through a redox reaction, students will be able to determine the amount of Iron (II) ions in a solid sample of ferrous ammonium sulfate hexahydrate. This lab would be most appropriate for an AP class or Honors.
Materials for the lab:
Redox Titration Lab.
Vernier ORP Sensor Configuration file.
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