In a reaction ,5.3g of sodium carbonate reacted with 6g of ethanoic acid. The product were 2.2 g of carbon dioxide,0.9g water and 8.2g sodium ethanoate. Show that these observation are in agrement with the law of conservation of mass. Sodium carbonate + ethanoic acid `rarr` sodium ethanoate + carbon dioxde + water.

Explanation

Mass of sodium carbonate = 5.3 g
Mass of ethanoic acid = 6 g
Total mass of reactants = (5.3 + 6) g = 11.3 g
Mass of sodium ethanoate = 8.2 g
Mass of carbon dioxide 2.2 g
Mass of water = 0.9 g
Total mass of products = (8.2 + 2.2 + 0.9) g = 11.3 g
`therefore` Total mass of reactants = Total mass of products
Thus the law of conservation of mass is verified .