Question

What volume of $4M$ $H_2{SO}_4$ is needed to produce $1L$ of $1M$ $H_2{SO}_4$?

• A. $350mL$
• B. $400mL$
• C. $300mL$
• D. $250mL$

Answer 1

Answer: (D)

$250mL$

In the two given samples, no. of moles of $H_{2}S{O}_4$ is constant.

So, $(\text{Molarity}{)}_1\times (\text{Volume}{)}_1=(\text{Molarity}{)}_2\times (\text{Volume}{)}_2$

$\Rightarrow \left(4\right)\times (Volume{)}_1=1\times 1$

$\Rightarrow (Volume{)}_1=\frac{1}{4}=0.25L=250mL$

So, $250mL$ of $4M{H}_{2}S{O}_4$ is needed.