Question

How much water must be added to $0.50$ litre of $6.0$M $HCl$ to make the solution $2.0$M ? Answer in liters.

• A. $0.33$
• B. $0.50$
• C. $1.0$
• D. $1.5$
• E. $2.0$

Answer 1

The correct option is D $1.5$

1.5 liter water must be added to $0.50$ litre of $6.0$ M $HCl$ to make the solution 2.0 M .
$M_1{V}_1=M_2{V}_2$
$M_1=6.0M$
$V_1=0.50L$
$M_2=2.0L$
$V_2=?$
$6.0M\times 0.50L=2.0L\times V_2$
$V_2=1.5L$