Q. If 6.3 g of NaHC$O_{3}$ are added to 15.0 g $CH_{3}COOH$ solution, the residue is found to weight 18.0 g. what is the mass of $CO_{2}$ released in the reaction?
A) 4.5 g
B) 3.3 g
C) 2.6 g
D) 2.8 g
Explanation
(b)
According to law of conservation of mass,
Mass of reactants = mass of products
$\therefore$ 6.3+15.0=18.0+$x$
Or $x = 21.3 - 18.0 = 3.3\ g$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.