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Bubble trouble: Hydrogen peroxide and potato experiment Aim The aim of this experiment is to investigate using hydrogen peroxide and potato (as a catalyse) to find out the optimum pH solution. Plan For this experiment I'm going to change the pH solution to different strengths. I am going to keep the same amount of potato throughout. I am going to keep the temperature the same throughout the experiment because if the temperature is too high it will mean that the enzymes denature. This will happen because of the lock and key theory. This theory says that if the enzymes aren't able to lock into each other because of their shape they won't bond making the enzymes useless. To keep the enzymes at their optimum temperature i am going to use a water bath, which I can set to the exact temperature. Observations H2O2 (vols.) Rise 1 (cm3) Rise 2 (cm3) Rise 3 (cm3) 2 6.8 8.8 11.2 4 6.7 8.5 11.1 6 6.4 8.4 11.4 8 6.7 8.5 11.5 10 6.5 8.7 11.3 For this table i have...

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