When comparing with class data, the majority of the class got the result of having no change in mass during a chemical reaction. Most of the few groups got different results were acceptable once the sensitivity of the balance was considered, such as a change in mass of 0.01. In the class data there were only a few outliers, and the overall trend of the class data was that there was no change in mass, or a 0% change in mass. This suggests that there is no change in mass during a chemical reaction, which supports the Law of Conservation of Mass, which states that mass cannot be created or destroyed, on transformed. Clearly, the mass of the substances were transformed into a new substance, but the substance that was created by heating copper and sulfur had the same mass as before undergoing a chemical change. A possible error that may have been encountered is that the group forgot to zero out the cup while measuring the masses of the materials, therefore including the cup’s mass in the group’s measurements and causing an apparent increase in
When comparing with class data, the majority of the class got the result of having no change in mass during a chemical reaction. Most of the few groups got different results were acceptable once the sensitivity of the balance was considered, such as a change in mass of 0.01. In the class data there were only a few outliers, and the overall trend of the class data was that there was no change in mass, or a 0% change in mass. This suggests that there is no change in mass during a chemical reaction, which supports the Law of Conservation of Mass, which states that mass cannot be created or destroyed, on transformed. Clearly, the mass of the substances were transformed into a new substance, but the substance that was created by heating copper and sulfur had the same mass as before undergoing a chemical change. A possible error that may have been encountered is that the group forgot to zero out the cup while measuring the masses of the materials, therefore including the cup’s mass in the group’s measurements and causing an apparent increase in