Thursday, March 17, 2011

Conservation of Mass Lab Investigation

Title: Conservation of Mass Lab Investigation

Problem: What will happen if we mix soda and pop rocks? What about baking soda and vinegar?

Hypothesis: If we mix soda and pop rocks there will be a large amount of gas released. The same thing will happen with baking soda and vinegar.

Results: In the first part of my video, entitled "First Test- Soda/Poprocks" you see Chloe putting a balloon on the top of a bottle of Pepsi. You may ask yourself, "why is this strange thing occurring?" Well, this is an experiment testing what will happen when pop rocks are added to Pepsi. When she puts the balloon on the pepsi, you see that the balloon inflates a little. The reason for this is the gas escaping is the occurrence of the desolving of the pop-rocks, which contain carbon dioxide. The gas is released into the balloon and the balloon inflates. In the second part of the video, chloe is putting the balloon onto a bottle of vinegar, and the same gas escapes again. This is the result of a chemical reaction that happens when the baking soda, that is in the balloon, and the vinegar, that is in the bottle, mix, and are converted into carbon dioxide, which is released into the balloon. In the first one, with pepsi and pop rocks, there was but a physical change, but in the second one, with vinegar and baking soda, there was a chemical reaction.

Video:

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