Question

A 10.0 mL 10.0 mL aliquot is removed from the described stock solution and diluted to a total volume of 100.0 mL. 100.0 mL. Calculate the molarity of the dilute solution.

Answer 1

The given question is incomplete. The complete question is:

A 10.0 mL aliquot is removed from the described stock solution with molarity of 5M and diluted to a total volume of 100.0 mL. Calculate the molarity of the dilute solution.

Answer: 0.5 M

Explanation:

$M_1V_1=M_2V_2$

where,

$M_1$ = molarity of stock solution = 5 M

$V_1$ = volume of stock solution = 10.0 ml ml

$M_2$ = molarity of dilute solution = ?

$V_2$= volume of  dilute solution = 100.0 ml

Putting in the values we get:  

$5M\times 10.0=M_2\times 100.0$

$M_2=0.5M$

Thus the molarity of the dilute solution is 0.5 M