Lavoisier Chemistry Lab

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The law of conservation of mass was discovered by Antoine Lavoisier many years ago. He claimed that “mass is neither created nor destroyed in chemical reactions.” This is the law of conservation. He came to this conclusion by burning phlogiston. Lavoieror took note that by burning phlogiston it lost its phlogiston and made new things. Not only was Lavoisier a chemist, he had many other jobs that may have helped him discover many of the thing that he did. He was eventually killed by getting his head cut off. This happened to him because of many reasons including building a wall around Paris and being a tax collector, and supporting the French revolution. Lavoisier discovered that mass is neither created nor destroyed in chemical reactions. …show more content…

Our experiments’ mass decreased by 3.64% after the reaction. The final balanced equation for this experiment is CaCL2 + 2NaHC3+ H2O = 2NaCl + CaCo3 + Co2 + 2H2O. This balanced equation supports The Law Of Conservation of mass because the mass was only changed by 3.64 which is less than 5%. The experiment being kept in a tight plastic bag, which was a closed system for the reaction to occur helped the mass to be as accurate as possible. The closed system made sure that no other things around the experiment could exchange matter with it. If the bag was opened at all then there would be a higher percent …show more content…

Four of these include the release of energy, which occurred during the reaction, the substance got hot. Change is color, it turned into a yellowish white color after the reaction. There was a change is smell, it smelled like salt mixed with water. And lastly there was a change in state of matter. While the experiment was reacting it was in closed system, the experiment ended up puffing up. The indicator solution made this occur. It caused the bag to puff up because it has high acidity levels and when mixed with the baking soda. This reaction was a exothermic reaction because heat was given off of the experiment. The catalyst or what caused the reaction to start was the indicator solution. This is because once the indicator solution was tipped over the reaction

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