Q. The molarity of a solution made by mixing 50 $mL$ of $conc\ H_{2}SO_{4}$ (36 N) with 50 mL of water is
A) 9 m
B) 10 m
C) 11 m
D) 12 m
Explanation
(a)
$N_{1}V_{1} = N_{2}V_{2}$
$36 \times 50 = N_{2} \times 100$
$\therefore N_{2} = \frac{36 \times 50}{100} = 18$
$\because Molarity\ of\ acid = \frac{Normality}{Basicity} = \frac{18}{2} = 9\ M$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.