Q. What is the molarity of $H_{2}SO_{4}$ solution that has a density 1.84 g/cc at $35℃$ and contains 98% solute by weight?
A) 4.18 M
B) 1.84 M
C) 8.41 M
D) 18.4 M
Explanation
(d)
Molarity
$= \frac{\begin{array}{r}
weight\ \%\ of\ solute \times density\ of\ the\ solution \\
\times 10
\end{array}}{molecular\ weight\ of\ the\ solution}$
$= \frac{98 \times 1.84 \times 10}{98}$
$= 18.4$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.