Catalase and Hydrogen Peroxide SC1
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... didn't react with anything, and were as "pure" as possible before the experiment began. When I was certain that it was all prepared, I poured both liquids into a conical flask and fixed on a bung with an attached tube. This operation needed to be practised before the experiment was done for real to ensure it was done as quickly as possible. After all, the hydrogen peroxide and yeast solution will have started reacting as soon as they came into contact. I connected the tube to the clay beehive and measuring cylinder, which were both already prepared in the water. From the very beginning, I started the stopclock timing and noted down how much oxygen had been reacted and had travelled down the pipe into the 100ml of water in the measuring cylinder. I noted down the volume of water that was left in the measuring cylinder after five minutes, taking a result every minute. I chose to take down the result for five minutes because any longer than that and ...
