Question

What volume should be added to $10.0mL$ of $5.00M$ $HCl$ be diluted to make a $0.500M$ $HCl$ solution?

• A. $1mL$
• B. $50mL$
• C. $100mL$
• D. $500mL$
• E. $1,000mL$

Answer 1

The correct option is C $100mL$

$M_1{V}_1=M_2{V}_2$
$5\times 10=0.5\times V_2$
$V_2=\frac{5\times 10}{0.5}=100ml$