Question

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 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 ??​

Answer 1

sodium carbonate + acetic acid → sodium acetate + carbon dioxide + water

5.3g 6g 8.2g 2.2g 0.9g

Now,

Total Mass on the Left Hand Side = 5.3g + 6g = 11.3g

Total Mass on the Right Hand Side = 8.2g + 2.2g + 0.9g = 11.3g

As Mass on the LHS is equal to RHS, the observation is in agreement with the law of conservation of mass.

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Answer 2

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