Question

If 6.3 g of $NaHCO_3$ are added to 15.0 g of $CH_3COOH$ solution ,the residue is found to weigh 18.0 g. The mass of $CO_2$ released in the reactionis

• A. 9.3 g
• B. 39 3 g
• C. 3.3 g
• D. None of these

Answer 1

Answer: (C)

3.3 g

Answer 2

$CH_{3}COOH + NaHCO_{3} \to CH_{3}COONa+H_{2}O+CO_{2} ?$CH_{3}COONa+H_[{2}O+CO_{2} ? Mass of reactants = Mass of products $6.3\,g+15.0\,g=18.0\,g$+ Mass of $CO_{2}$ Mass of $CO_{2}=6.3\,g+15.0\,g-18.0\,g$ $=3.3\,g$