procedure of law of conservation of mass with sodium sulphate and barium chloride experimentally
Answers
EXPERIMENT :::
. Take a solution of barium chloride in a conical flask and a solution of sodium sulphate in a test tube.
. Tie a thread to the test tube and insert it in the conical flask.
. Seal the conical flask with a rubber Cork.
. Weight the conical flask using a balance.
. Now tilt (mix) the conical flask so that the solution in the test tube gets poured in the conical flask.
. Now weigh the conical flask again.
Explanation:
In the above experiment the mass of the original matter and the mass of the matter newly formed as a result of chemical changing are equal. In 1785, the French scientist Antoino Lavoisier inferred from his research that 'there is no rise or drop in the weight of the matter during a chemical reaction'. In a chemical reaction the total weight of the reactant is same as the total weight of the products formed due to the chemical reaction and this is called the law of conservation of matter.
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