Sunday, 22 May 2005

This presentation is part of: High School Student Posters & Displays

The Chemistry of the Oscillating Clock Reaction

Simranjeet S. Sran, Monroe Twp. High School, Monroe Twp., NJ

This is an oscillating clock reaction of bromide, bromate, malonic acid, sulfuric acid, and ferroin. In this research, these components and their relationships were studied in the oscillating clock. Parameters were defined for induction time, cycles, and length of reaction. Data was collected in these areas as well as initial cycle length with the original reaction concentrations, followed by reactions with a single concentration change. An increase in bromide slowed induction time, initial cycle length, length of reaction, and number of cycles while a greater bromate concentration led to a speedier reaction with more cycles. An increase in the concentration of malonic acid resulted in a longer reaction. Ferroin, when increased, masked the oscillations. It was also found that an oscillation could be induced in the reaction vessel. The results and their relative graphs showed a distinct correlation to the equations for this specific oscillating clock.

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