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Diet Coke and MentosChemistryExperimental InvestigationRayan Soltana640 W. Scott St.Chicago, IL 60610Grade 8Table of ContentsAcknowledgements                                                                                                                 Page 2Purpose and Hypothesis                                                                                                          Page 3Background Research                                                                                                              Page 4Review of Literature                                                                                                               Page 5Materials and Procedure                                                                                                          Page 6Results                                                                                                                                     Page 7Conclusion, Reflection, Application                                                                                       Page 8 Reference List                                                                                                                         Page 9Acknowledgements I would like to thank my parents for helping me complete my experiment. They helped me buy my materials and also let me use their garage to take the experiment. My parents also helped me work with my experiment and helped me do a bit of research.Purpose and Hypothesis The purpose of this experiment is to see if the amount of mentos really does affect the reaction with coke. Does it really make the reaction larger? This experiment will show how mentos affect the reaction with Diet Coke. My hypothesis is that the more Mentos I put into the coke the larger the reaction because the reaction with mentos has to do with the bumps on the surface and the more bumps the larger the reaction.Background ResearchThe reaction between coke and mentos is a physical reaction called nucleation. This happens because the carbon of the coke is trying to escape and holds on to tiny pockets to create bubbles. The mentos surface is full of these bumps which disrupts the polar attractions between water molecules to create nucleation sites. To put it simply the bumps give the carbon space to create bubbles.These bubbles shootout the spout of the coke bottle. Without having a tiny spout the coke bubbles wouldn’t shootout they would just flow out of a cup. Even though this is a relatively easy topic there are many variables that go into the experiment. For example if the Coke isn’t warm enough the reaction won’t work. Also if the mentos falls faster the larger the reaction, for example is you attach a rock to the mentos the reaction will be larger.Well there is a reason Diet Coke works better than regular Coke. One of those things is that aspartame, which is usually found in diet sodas, lowers the surface tension. With a lower surface tension the reaction would be larger and probably have less coke left in the bottle. Review of LiteratureThe reaction between coke and mentos is a physical reaction called nucleation. This happens because the carbon of the coke is trying to escape and holds on to tiny pockets to create bubbles. The mentos surface is full of these bumps which disrupts the polar attractions between water molecules to create nucleation sites. To put it simply the bumps give the carbon space to create bubbles.These bubbles shootout the spout of the coke bottle. Without having a tiny spout the coke bubbles wouldn’t shootout they would just flow out of a cup. Even though this is a relatively easy topic there are many variables that go into the experiment. For example if the Coke isn’t warm enough the reaction won’t work. Also if the mentos falls faster the larger the reaction, for example is you attach a rock to the mentos the reaction will be larger.Well there is a reason Diet Coke works better than regular Coke. One of those things is that aspartame, which is usually found in diet sodas, lowers the surface tension. With a lower surface tension the reaction would be larger and probably have less coke left in the bottle. Materials and ProcedureGather materialsPut 1 mentos into a coke bottle (2x)Record observationsPut 2 mentos into a coke bottle (2x)Record observationsPut 3 mentos into a coke bottle (2x)Record observationsPut 4 mentos into a coke bottle (2x)Record observationsMeasure the coke left in each bottleRecord observationsResults# of MentosTest #1 (height, cm)Test #2 (height, cm)Amount of Coke Left (Average, fl.oz.)123524553774.54844Conclusion, Reflection, and Application The hypothesis in the beginning was that the more mentos there were the larger the reaction was. After looking at the data one can see that the hypothesis was correct after all. As the data states the more mentos that were put into the Diet Coke the higher the geyser was and the less coke was left in the bottle. The experiment had many flaws which could have affected the results in many ways. One way it could affect the result is that the temperature of the coke was colder than usual. Since the weather outside was cold when the experiment happened and the colder the coke the smaller the reaction. Also in the last test for 4 mentos has one mentos stuck at the top that slowed the geyser for shooting out too much coke. This cannot be used in the real world.   Reference List

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