Question

5.3 g of sodium carbonate and 6.0 g of acetic acid react to produce 2.2 g of carbon dioxide, 0.9 g of water, and 8.2 g of sodium acetate. Verify whether the law of conservation of mass is valid.

Answer 1

Total mass of reactantsz

= $$5.3,\mathrm{g} + 6.0,\mathrm{g} = 11.3,\mathrm{g}$$.

Total mass of products = $$2.2,\mathrm{g} + 0.9,\mathrm{g} + 8.2,\mathrm{g} = 11.3,\mathrm{g}$$.

Since the mass of reactants equals the mass of products, the law of conservation of mass is valid.