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Stoichiometry Lab: Vinegar and Baking Soda Introduction In this lab, the science concept being investigated was stoichiometry. Stoichiometry is the part of chemistry that predicts the amount of product made or the amount of reactant still needed. The objective of the investigation was to observe and record the amount of Carbon Dioxide that escaped. In the lab the two cups were measured, one with baking soda and the other with vinegar.The vinegar was then poured in increments, and then the cups were measured after the bubbling finished. The overall results from the experiment were the amount of carbon dioxide that escaped was calculated, and the mass of one cup decreased (B), while the mass of the other cup increased (A). In conclusion, the lab taught the student about the conservation of mass, that mass stays the same throughout the reaction. Also, that actual yield may not always match theoretical yield. Methods Materials The materials used for this lab experiment were two paper cups, baking soda, vinegar, a 50ml graduated cylinder and an electronic scale. Procedure The two cups were measured for mass. 10g of baking soda was poured into cup A and 50g of vinegar was poured into cup B. the mass of the two cups was taken again. A small amount of vinegar from cup B was poured into Cup A to start the reaction. After the reaction ends, a tiny increment of vinegar was poured into cup A. This process was repeated until the reaction stopped completely. The mass of the two cups was recorded again.

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Stoichiometry Lab: Vinegar and Baking Soda  

Introduction  In this lab, the science concept being investigated was stoichiometry. Stoichiometry is the part of chemistry that predicts the amount of product made or the amount of reactant still needed. The objective of the investigation was to observe and record the amount of Carbon Dioxide that escaped. In the lab the two cups were measured, one with baking soda and the other with vinegar.The vinegar was then poured in increments, and then the cups were measured after the bubbling finished. The overall results from the experiment were the amount of carbon dioxide that escaped was calculated, and the mass of one cup decreased (B), while the mass of the other cup increased (A). In conclusion, the lab taught the student about the conservation of mass, that mass stays the same throughout the reaction. Also, that actual yield may not always match theoretical yield.   Methods  Materials  The materials used for this lab experiment were two paper cups, baking soda, vinegar, a 50ml graduated cylinder and an electronic scale.   Procedure   The two cups were measured for mass. 10g of baking soda was poured into cup A and 50g of vinegar was poured into cup B. the mass of the two cups was taken again. A small amount of vinegar from cup B was poured into Cup A to start the reaction. After the reaction ends, a tiny increment of vinegar was poured into cup A. This process was repeated until the reaction stopped completely. The mass of the two cups was recorded again.