Page 91 - Abstract book - TJSSF-2020

Thailand – Japan Student Science Fair 2020 (TJ-SSF 2020)
“Seeding Innovations through Fostering Thailand – Japan Youth Friendship”

The time dependent change of redox reaction under various conditions

Kotaro Sato
1
Advisor: Nanako Takeda
1

Ritsumeikan High School
1

Abstract
This research examines how changes in the amount of NaOH or stirring conditions affects the speed
and time of redox reaction using the chemical traffic light experiment. How to mix and change the
substances types and amounts were mainly discussed in this research. In most of the experiments, the
time and speed changed. The mixing method was found to greatly affect the redox reaction of solutions.
These experiments are redox reaction, so having air in the bottle is very important for these experiments.
The method by which to mix the solutions so that they would come in contact with air was determined.
The substances were affected by the reducibility in these experiments. For example, there are many
types of sugar and not all sugars possess reducibility. Furthermore, the amount of substances was very
important, because concentration was affected by it. These factors affected both the speed and time
redux reactions conducted in this research.

Keyword: redox reaction high

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