Pipet Rocket Lab Report

The goal of this experiment was to use gas-forming reactions to find the best ratio of oxygen to hydrogen for a combustion reaction in order to launch the pipet rocket the farthest. The original hypothesis was that a 2:1 oxygen to hydrogen ratio would result in the farthest launch of the rockets when oxygen added first to the reaction. This hypothesis has been disproven; it has been found through trials that a 1:2 oxygen to hydrogen ratio with the addition of oxygen to the reaction first yields the greatest propulsion of the rockets.

When addressing the balanced equation of reaction C, 2 mol of hydrogen reacts with 1 mol of oxygen to produce 2 mol of water. This is the first indicator of how this 1:2 oxygen to hydrogen ratio will be favored.

In Table 1, Trial 1 and Trial 2 contain two mol of oxygen reacting with four mol of hydrogen to obtain that 1:2 ratio. As seen in the observation of distance the rockets flew, the farthest distances were found to be when this ratio was used. Also, the rocket that flew the farthest in the entirety of Table 1 was found in Trial 2 when oxygen was added to the pipet first. This observation does coincide with the hypothesis which predicted the addition of oxygen to the system first would produce the greatest propulsion. The remaining trials typically followed a trend characterized by a decrease in distance flown with an increase in the number of moles of oxygen in the combustion reaction.

With the collection of data from multiple experiments, a hypothesis has greater

In comparison to group data found in Table 2, the data does not appear to contain any outliers. When addressing the best trial run for each group, every group recorded oxygen as their first gas added; the data from this experiment concurs with that. In reference to the oxygen to hydrogen ratio, three out of five of the groups found that a 1:2 ratio yielded the best trial run, and four out of five of the groups found that a ratio in which oxygen was less than hydrogen yielded the best trial run. Table 1 supports these findings in that the greatest distances flown are found when the ratio of oxygen to hydrogen is 1:2. In comparison to distances flown, the average best flight distance was 185 inches, which is comparable to the best flight distance of 180. inches in this experiment. The average worst flight distance was 99.6 inches, which is once again comparable to the worst flight distance of 117 inches in this