Color Countdown Timer (Spectrophotometer)

Experiment #7A from Forensic Chemistry Experiments

• Apply scientific principles and evidence to provide an explanation about the effect of blue food dye concentration on the rate of reaction between bleach and food dye.
• Analyze and interpret absorbance spectra to identify the wavelengths of maximum absorbance for blue food dye.
• Use mathematical representations to determine the rate constant for the reaction between blue food dye and bleach and the half-life of the reaction.
• Communicate technical information about the process used to identify the rate of change of blue food dye concentration using absorbance data.
• Write a Case Report to help detectives present the case in court.

The Decomposition of Hydrogen Peroxide

Experiment #12 from Advanced Chemistry with Vernier

In this experiment, you will

• Conduct the catalyzed decomposition of hydrogen peroxide under various conditions.
• Calculate the rate constant for the reaction.
• Determine the rate law expression for the reaction.
• Calculate the activation energy for the reaction.