Question

In a reaction 4 gm of sodium carbonate reaction with 10 gm of hydrochloric acid solution. The product was mixture of 2.5g of carbon dioxide and 11.5 g of sodium chloride solution. Is this data in the agreement with the law of conservation of mass

Answer 1

Before reaction the total mass is 4+10=14gms
After reaction the total mass is 2.5+11.5=14/14.0gms.

Therefore the total mass before and after reaction is same, hence the data is in agreement of the conservation of mass