Hydrogen Peroxide Reaction

Discussion:

In this experiment, the enzymatic effects of various materials on hydrogen peroxide, H2O2 solution is conducted in the biology laboratory. The materials used in this experiment are liver, potato cube and manganese dioxide. These materials are used to react with hydrogen peroxide solution. Liver represented the presence of catalase enzyme in our body and the potato cube represented the presence of catalase enzyme in a plant. Manganese dioxide is an inorganic catalyst of hydrogen peroxide which decomposed hydrogen peroxide into water, H2O and oxygen, O2. The catalase enzyme of the hydrogen peroxide speeded up the chemical reaction and remained unchanged at the end of the reaction. The independent variable of this experiment

Parallax error that occurred will affect the accuracy of the results. Besides that, the liver and potato cannot cut exactly into cubes of 0.8cm x 0.8cm x 0.5cm. This experiment can be improved by increased the accuracy while cutting the liver and potato into cubes to ensure that each test tube has the same amount of liver and potato. The presence of oxygen in the boiling tube should be tested by directly penetrated the glowing wooden splinter into the boiling tube through the parafilm. Some precautions should be taken while conducting this experiment. First and foremost, the test tube should be covered immediately by parafilm after hydrogen peroxide is poured into the boiling tube that contained materials to prevent the leakage of gas. Thus, more accurate results can be obtained. Then, all boiling tube should be tested at the same time because there will be more product produced as the time getting longer. Furthermore, fresh liver and potato should cut into cubes with care because the blade is very sharp. Gloves and lab coat should be worn because hydrogen peroxide is very corrosive and will damage our