Featured in PASCO’s College Chemistry Instructor Guide
College Instructor edition with 36 experiments covering introductory and general chemistry topics.
Use an oxidation reduction potential electrode and drop counter to determine the concentration of a commercial, nominally 3% hydrogen peroxide solution, measuring the change in potential during an oxidation-reduction reaction.
Students use the change in potential during an oxidation-reduction reaction to determine the concentration of a commercial, nominally 3% hydrogen peroxide solution.
Students gain experience conducting the following procedures:
- Applying titration skills to oxidation-reduction reactions; using an oxidation reduction potential electrode.
- Applying oxidation-reduction equations to obtain the stoichiometric ratio between the titrant and analyte.
- Using the equivalence point volume of the titrant to calculate the concentration of the hydrogen peroxide solution.
Sensors / Equipment Used:
Allows students to measure Temperature, pH/ISE/ORP, Absolute Pressure & Voltage in one sensor. For use with PASPORT Interfaces.
Is a professional drop counter that allows students to capture detailed titration data. For use with PASPORT Interfaces.
The ORP probe allows students to determine the ability of a species in a solution to act as an oxidizing agent or reducing agent.
Magnetic stirrer and stir bar
Beaker, 150-mL - 2
Volumetric pipet, 10-mL
Graduated cylinder, 50-mL
Hydrogen peroxide, ~ 3%, 1:20 dilution - 40 mL
1.000 × 10–2 M Potassium permanganate (KMnO4) - 100 mL
4 M Sulfuric acid (H2SO4) - 70 mL
Water, deionized - 250 mL
Wash bottle with deionized water
The Associated Bundle:
Contains the probeware for completing experiments in the College Chemistry lab manual.