Question

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

(a) 1.5 M (b) 1.66 M (c) 0.017 M (d) 1.59 M

Answer 1

Given that,

$M_1=6M{V}_1=500mL{V}_2=1500mL{M}_2=M$
For dilutoin, a general formula is
$\underset{Beforedilution}{M_1{V}_1}=\underset{Afterdilution}{M_2{V}_2}M=\frac{6}{3}=1.66M$