Question

Describe an activity to show the laws of conservation of mass​

Answer 1

Answer:

Here is the answer

(a)Mass can be neither be created not destroyed in a chemical reaction..

(b)Procedure :

•Prepare 5% solution of each: Sodium sulphate and Barium chloride.

•A little amount of sodium sulphate solution is taken in a conical flask and a little solution of barium chloride is taken in an ignition tube.

•Hang the ignition tube in the conical flask carefully as shown in the figure.

•Put a cork on the flask and weigh the flask with its contents.

•Now, tilt and swirl the flask so that the two solutions mixed-up well.

•Weigh the flask again.

(c) Observation :

•Chemical reaction takes place.

•Weight of the flask remains same before and after the reaction.

(d)Conclusion :

• Total mass of the products = Total mass of the reactants.

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