Featured in PASCO’s College Chemistry Instructor Guide
College Instructor edition with 36 experiments covering introductory and general chemistry topics.
Chemical Reaction Equilibrium
Use a colorimeter to determine the equilibrium constant for a chemical reaction.
Students determine the equilibrium constant for a chemical reaction using visible spectroscopy.
Students gain experience conducting the following procedures:
- Preparing solutions.
- Using visible spectroscopy to determine the concentration of an absorbing species.
- Calculating the equilibrium using Beer’s law, known initial concentrations, and the mathematical relationship between the concentrations of the reactants and products.
Sensors / Equipment Used:
Our PASPORT Colorimeter records all 4 wavelengths simultaneously--no need to guess at wavelength to get a quality measurement.
Beaker, 50-mL - 2
Test tube, 15-mL - 5
Test tube rack
Graduated pipet, 10-mL - 2
0.01 M Iron (Fe3+) - 20 mL
0.00300 M Potassium thiocyanate (KSCN) - 20 mL
Deionized water - 40 mL
The Associated Bundle:
Contains the probeware for completing experiments in the College Chemistry lab manual.