Question

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
water and 8.2 g of sodium
acetate. Show that these observations are in agreements with the law of conservation of massSodium carbonate plus ex is equal to sodium oxalate plus carbon dioxide plus water
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Answer 1

Answer:

In the reactant side we have sodium carbonate and ethanoic acid

Mass of sodium carbonate=5.3g (given)

Mass of ethanoic acid=6g(given)

Now total mass before reaction that is mass of reactants=(5.3g+6g)=11.3g

Now let us check product side

Mass of carbon dioxide=2.2g(given)

Mass of water=0.9g(given)

Mass of sodium ethanoate=8.2g(given)

Now total mass after reaction that is mass of products =(8.2g+2.2g+0.9g)=11.3g

Conclusion

Total mass before reaction=total mass after reaction

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