1. Aim: To perform the given activity to verify the law of conservation of mass. Material required: conical flask, baking soda, vinegar, weighing balance, balloon Procedure: Pour about 1/4 cup of vinegar in a conical flask. 2. Now, take about 2 g of baking soda and put it in the conical flask. Now, weigh the flask to know the total weight of the reactants. Refer figure a. (This is the weight of your apparatus including reactants and the balloon.) Mass of vinegar in the flask including balloon + baking soda = X grams (say) 3. Close the mouth of the flask with a balloon, immediately after adding baking soda. Shake the reactants slightly and let the bubbles in the mixture settle down. Do not let the gas from the pouch escape. Weigh the liquid in the flask again when you see that the bubbles have settled down. Refer figure b. Write your observation and conclusion in the space provided. Observation: Conclusion:
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mass can neither be created nor be destroyed it can change from one form to another form
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