Debrief+page

DEBRIEF!

During the process of conducting my experiment, it went over very well each time I conducted it. A few of the things that were changed to increase the rate of the reaction was to use newer 30% hydrogen peroxide compared to the old hydrogen peroxide we obtained.

When I first conducted the experiment, I used a smaller scale so I wouldn’t use up all of the products before I had time to perform my reaction on camera. On the smaller scale, I did three trials, the first being the worst because of the hydrogen peroxide used. The second time I used the new peroxide bought and it worked better. To increase the reaction rate, the third time I conducted the experiment I used finer manganese dioxide and made sure there were no chunks which increased the surface area and also increase the reaction rate.

Each time, I was able to tell that this was an exothermic reaction because each time, the bottle at the end had shrunk because of the heat produced during the experiment. The first time, the change in size of the bottle was very slim, but definitely could see it shrunk. The next two times, the bottles ended up being smaller by almost a centimeter.

I think these three trials help me to perfect my experiment as the reaction works instantaneously now.