Question

If 500 mL of a 5 M solution is diluted to 1500 mL, what will be the molarity of the solution obtained?

• A. $1.5M$
• B. $1.66M$
• C. $0.017M$
• D. $1.59M$

Answer 1

Answer: (B)

$1.66M$

Answer 2

(2) : $M_{1}V_{1} = M_{2}V_{2}$

$5M \times 500mL = M_{2} \times 1500mL$

$\therefore M_{2} = \frac{5 \times 500}{1500} = 1.66M$