Question

In a reaction, 5.3g of Sodium Carbonate reacted with 6g of ethanoic acid. The products were 2.2g of CO2, 0.9g of water and 8.2g of Sodium ethanoate. Show that these observations are in agreement with the law of conservation of mass, Sodium Carbonate + Ethanoic acid = Sodium ethanoate + Carbon dioxide + Water.

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Answer 1

Law of conservation of Mass States that "Mass is neither created, nor destroyed".

→ Like Mass of Reactants = Mass of products.

REACTANTS :

• Mass of Sodium Carbonate(given) = 5.3g

• Mass of ethanoic acid(given)= 6g

The total mass of reactants:

= 5.3 + 6

= 11.3g

•Products are :

• Mass of Carbon Dioxide = 2.2g

• Mass of Water = 0.9g

• Mass of Sodium ethanoate = 8.2g

The total mass of products is :

= 2.2 + 0.9 + 8.2

= 3.1 + 8.2

= 11.3g

Hence the, Mass of Reactants = Mass of products

∴ The given reaction is in agreement with the law of conservation.

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