Acid Base Reactions
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Acid Base Reactions Nick Guerrero Nick Delinski Jake Seiler Ken Nakai
description
Acid Base Reactions. Nick Guerrero Nick Delinski Jake Seiler Ken Nakai. Introduction. The purpose of the following experiments was to collect a wide variety of data using specialized computer-based probes. We also evaluated the software, Logger Pro, and the hardware, LabPro. The Probes. - PowerPoint PPT Presentation
Transcript of Acid Base Reactions
Acid Base Reactions
Nick GuerreroNick Delinski
Jake SeilerKen Nakai
IntroductionThe purpose of the following experiments was to collect a wide variety of data using specialized computer-based probes.
We also evaluated the software, Logger Pro, and the hardware, LabPro.
The ProbesThe Dissolved Oxygen Probe
The ProbesThe Dissolved Oxygen Probe
Used to measure the oxygen dissolved in a liquid
The ProbesThe pH Probe
The ProbesThe pH Probe
Used to measure the pH of a given solution.
The ProbesThe Temperature Probe
The ProbesThe Temperature Probe
Used to measure the temperature of a solution.
The ProbesThe Conductivity Probe
The ProbesThe Conductivity Probe
Used to measure the ability of a solution to conduct electricity between two electrodes.
The ExperimentUsing two iBook computers connected to two LabPro hubs, we conducted the four experiments simultaneously.
Each computer recorded data in real-time from two of the probes.
The ExperimentWe performed the following experiments:
Adding baking soda to Coca-ColaAdding baking soda to vinegarAdding aqueous ammonia to lemon juice
The Hypothesis - Reaction AAdding baking soda to Coca-Cola:
pH will increase as the acid from the cola is neutralized.Temperature will increase as the reaction proceeds.Dissolved oxygen will decrease as gas is released from the solution.The solution will begin to conduct more as we add ions to the solution.
The Hypothesis - Reaction BAdding baking soda to vinegar:
pH will increase as the vinegar is neutralized.Temperature will increase.Dissolved oxygen will decrease.The solution will begin to conduct more as we add ions to the solution.
The Hypothesis - Reaction CAdding aqueous ammonia to lemon juice:
pH will increase as the vinegar is neutralized.Temperature will increase.Dissolved oxygen will decrease.The solution will begin to conduct more as we add ions to the solution.
The ResultsThe following data was collected for Reaction A, the baking soda and Coca-cola.
The ResultsThe following data was collected.
The ResultsThe following data was collected.
The ResultsThe following data was collected for Reaction B, the vinegar and baking soda.
The ResultsThe following data was collected for Reaction B, the vinegar and baking soda.
The Results
The ResultsThe following results were obtained during Reaction C, the ammonia and lemon juice.
The ResultsThe following results were obtained during Reaction C, the ammonia and lemon juice.
The Results
The Conclusions - Reaction AIt was apparent during the baking soda and Coca-cola reaction that the temperature decreased, dissolved oxygen decreased, conductivity increased, and pH increased . This was a surprise to us, since we were not aware that the reaction was endothermic.
The Conclusions - Reaction BDuring the vinegar/baking soda reaction, the temperature decreased, dissolved oxygen decreased, conductivity increased, and pH increased . Again, it was surprising that the reaction lowered the temperature of the solution.
The Conclusions - Reaction CThe ammonia/lemon juice reaction yielded even more surprises; the temperature increased, dissolved oxygen increased, conductivity decreased, and pH increased.
The first three probes gave data contrary to our previous two experiments.
The Conclusions - Reaction CWe may have not noticed the temperature changes using non-computer based thermometers. Technology also allowed us to test all four areas at the same time (and in real-time), allowing us to draw guaranteed, factual results.Money issues!!!!
The EndAuthors:
Ken NakaiNick GuerreroNick DelinskiJake Seiler
