Question

when 4.2 gram of sodium bicarbonate is added to a solution of acetic acid waiting 10.0 gram it was observed that 2.2 gram of co2 is released into the atmosphere the residue left to find two ways show that the result are follow the law of conservation of mass

Answer 1

Answer:

According to the law of conservation of mass, the mass can neither be destroyed nor be created in a chemical reaction

So, mass of reactants =mass of products

4.2 gram of NaHCO3 + 10 gram of CH3COOH = 2.2 gram of CO2 + residue left

mass of residue =14.2-2.2

=12 gram , satisfying the law of conservation of mass