Question

A reaction between barium chloride solution and sodium sulphate solution was carried out in a sealed conical flask. The masses of the reactants and products were carefully measured. It was then concluded that :
(a) Mass of sodium sulphate is equal to mass of barium chloride
(b) Mass of barium chloride is equal to mass of barium sulphate
(c) Mass of sodium sulphate is equal to mass of sodium chloride
(d) Mass of sodium sulphate mass of barium chloridemass of sodium chloridemass of
barium sulphate

Answer 1

$BaCl_{2} +Na_{2} SO_{4} =BaSO_{4} +2NaCl$
According to the law of conservation of mass ,
Mass of reactants= Mass of products.
Hence (d) is correct.