In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 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.
Sodium carbonate + Ethanoic acid → Sodium ethanoate + Carbon dioxide + Water

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Solution

Solution:

According to the law of conservation of mass,
Total mass of reactants = Total mass of products

[0.5 Marks]

Total mass of reactants = Mass of sodium carbonate
+ Mass of ethanoic acid
= 5.3 g + 6 g
= 11.3 g

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Total mass of products = Mass of sodium ethanoate + Mass of carbon dioxide + Mass of water
= 8.2 g + 2.2 g + 0.9 g
= 11.3 g
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The total mass of reactants and the total mass of products are equal.

Therefore, the given observation is in agreement with the law of conservation of mass.

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Q. Sodium carbonate reacts with ethanoic acid to form sodium ethanoate, carbon dioxide and water. In an experiment, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid to form 8.2 g of sodium ethanoate, 2.2 g of carbon dioxide and 0.9 g of water. Show that this data verifies the law of conservation of mass.

In a reaction, 5.3 g of sodium carbonate reacted with 6 g of acetic acid. The products were 2.2 g of carbon dioxide, 0.9 g of water and 8.2 g of sodium acetate. Show that these observations are in agreement with the law of conservation of mass.
Sodium Carbonate + Acetic Acid $\to$ Sodium Acetate + Carbon Dioxide + Water

In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 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.

sodium carbonate + ethanoic acid → sodium ethanoate + carbon dioxide + water.

Q. Ethanoic acid + Sodium Carbonate

\to

Sodium ethanoate + Carbon dioxide + Water.
If 6 g of acid reacts with 5.3 g of salt, the products are 2.2 g of carbon dioxide, 0.9 g of water and 8.2 g of sodium ethanoate. Which law is obeyed ?

Q. In a reaction

5.3 g

of sodium carbonate reacted with

6 g

of ethanoic acid. The products were

2.2 g

of carbondioxide,

0.9 g

of water and

8.2 g

of sodium ethanoate. These observations are in agreement with :

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