Explain with the help of a labelled diagram an activity for the verification of law of conservation of mass.
Asked by Topperlearning User | 29th Mar, 2016, 05:11: PM
Principle- Law of conservation of mass states that mass can neither created nor destroyed in a chemical reaction.
Total Mass of the Reactant = Total Mass of the Product
Technique- Take a solution of calcium chloride in a flask labeled A, and a solution of sodium sulphate in a test tube labeled B.
Tie a thread to the test tube and carefully lower it in the flask. Cork the flask to make it airtight.
Weigh the flask on a balance. It weighs 300.23 grams.
Tilt and swirl the flask and allow the contents of the test tube to come in contact with the contents of the flask.
Observation- Calcium chloride reacts with sodium sulphate to form a white precipitate of calcium sulphate and a solution of sodium chloride.
Weigh the flask again. There will be no change in the weight of the flask. It again weighs 300.23 grams.
Conclusion- Scientists noticed that if chemical reactions were carried out in a closed container, there is no change in the mass.
The total mass of the reactants is equal to the total mass of the products.
Answered by | 29th Mar, 2016, 07:11: PM
- What is kinetic energy?
- what is chemical
- What is kinetic energy
- What is inter molecular force?
- What is meaning of kinetic energy
- in a reaction 4.0g of sodium carbonate were reacted with 10g of hydrochloric acid. The product was a mixture of 2.5g of carbon dioxide and 11.5g of sodium chloride.
- How to identify which radical it is? Any tricks to find?
- What are the forth drawback of Delton'theory ?
- What does 20% w/v sugar syrup means what.
- In a reaction 5.3gm of sodium carbonate reacted with 6gm of ethanoic acid , the products were 2.2gm of carbon dioxide, 0.9gm of water and 8.2 gm of sodium ethanoic. Show that , these observations are in agreement with law of conservation of mass.
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number