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If 6.3 g of sodium bi carbonate is added to 15 g of acetic acid solution,the residue is found to weigh 18 g. What is the mass of carbon dioxide released in

the reaction?


According to the law of conservation of mass

mass of reactants= mass of products

mass of sodium bicarbonate + acetic acid = mass of CO2 + Residue

6.3g + 15g = 21g

so mass of carbon dioxide = 21g - 18g =3g
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