For this testis lab we are testing the saving of Matter faithfulness. It states that the mass of reactants in a chemical reaction result be equal to the mass of the products of that very(prenominal) reaction. The purpose of this formal lab is to do an experiment and test that law. Because of what the law says, the radical affluent of chemicals before the reaction should have weighed the have same amount after the reaction had occurred. The law does make palpate because if nothing had entered the stunner and nothing had exited the sweetheart, it should weigh the same amount.
? Law of Conservation of Mass: the principle that in any unlikable system subjected to no external forces, the mass is constant irrespective of its changes in form; the principle that matter cannot be created or destroyed.
Hypothesis:
Even after the chemicals have mixed I believe that because there are no chemicals being added or taken away the bag will weigh the exact same amount before and after the chemical reaction has taken place.
Materials:
Citric acidSmall ziplock bag
Baking sparkling waterBerol pipet
Bromothymol blue indicatorbalance
Procedures:
1. Split the bag in half(a) and fill one side with citric acid and the other(a) side with baking soda
2. Fill the pipet with the bromothymol blue indicator
3. hug any air that is left in the bag
4. Put bag on balance and record weight
5. Mix all the confine in the bag and let it sit for a few minutes
6.
When all chemicals are completely mixed, weigh the bag on the balance again and record the weight
Data and Calculations:
|List the evidences of a chemical reaction occurring in the |Color change |
|ziplock bag |Formation of gas- bubbles |
| |Heat change- endothermic...If you want to get a full essay, order it on our website: Orderessay
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