Question

When $6.3\, g$ of sodium bicarbonate are added to $30.0\, g$ of acetic acid solution, the residual solution is found to weigh $33.0\, g$. The mass of carbon dioxide released in the reaction is

• A. $3.0\, g$
• B. $0.91\, g$
• C. $1.91\, g$
• D. $3.3\, g$

Answer 1

Answer: (D)

$3.3\, g$

Answer 2

$CH_{3}COOH+NaHCO_{3}\rightarrow CH_{3}COONa$ $+\,H_{2}O+CO_{2}$
$\because$ Amount of reactants $=6.3+30.0=36.3\,g$
$\because$ Amount of residual solution $=33.0\,g$
$\therefore$ Mass of carbon dioxide released $=36.3-33.0$
$=3.3\,g$