produced by the gas. In trial 3/4, 2mL of hydrogen peroxide were used which resulted in a 17mL
change in volume produced by the gas. In trial 5/6, 3mL of hydrogen peroxide was used which
resulted in 22mL change in volume. In trial 7/8, 4mL of hydrogen peroxide were used and this
yielded the most gas resulting in a 28mL change in volume.
In this experiment, the experimenter acquired pure oxygen from the decomposition of
hydrogen peroxide to form the oxygen gas. The use of a catalyst to speed up the reaction was
used, the catalyst being yeast, catalysts are usually present in the form of an enzymes called
catalase. The combination of hydrogen peroxide and yeast generated oxygen gas which flowed
through the tube and into the graduated cylinder. Calculations were possible through the use of
the ideal gas law, avogadros law, and the measurements of volume, pressure, and temperature.