Question

In a reaction 5.5 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.4 g of carbon dioxide, 0.9 g of water and 8.2 g of sodium ethanoate. Show that these observations are in agreement with the law of conservation of mass. Hint (sodium carbonate + ethanoic acid → sodium ethanoate +carbon dioxide + water)

Answer 1

Answer:

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Answer 2

Answer:

Law of conservation of mass (Given by Antonie Lavoiser) states that "In a chemical reaction total mass of reactant is equal to the total mass of product."

In your question it is given that -

Reactants-                                                         Products

Sodium Carbonate =5.5g                              Carbon Dioxide = 2.4g

Ethonoic acid =6g                                           Water=0.9g

                                                                         Sodium Ethanoate=8.2g

From law of conservation of mass we get,

Total mass of reactants= Total mass of product

Sodium Carbonate+Ethonoic acid=CarbonDioxide+Water+SodiumEthanoate

5.5 g + 6g = 2.4g + 0.9g + 8.2g

11.5g          =  11.5g

Since Total mass of reactant is equal to the total mass of product.

Hence It follows law of conservation of mass.