What question did this study set out to answer?

The aim is to calculate the rate law of the iodine clock reaction using spectroscopic methods without starch or thiosulfate.

A Spectroscopic Analysis of the Kinetics of the Iodine Clock Reaction without Starch

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Experiment uncovers the rate law of the iodine clock reaction, simplifying understanding for students.

The aim is to calculate the rate law of the iodine clock reaction using spectroscopic methods without starch or thiosulfate.
Conducted spectroscopic analysis using a visible spectrometer to measure absorbance of I2.
Eliminated the need for starch and thiosulfate as indicators.
Calculated reaction rates by correlating absorbance vs. time graphs with reactant concentrations.
Demonstrated first order behavior of the iodine clock reaction with respect to individual reactants.
Calculated initial rate law confirms the reaction is first order for each reactant.

Stock et al. (2010) studied this question.

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