If 30.0 mL of a 12.0 M hydrochloric acid (HCI) stock solution is diluted to a volume of 500.0 mL,

what is the molarity of the dilute solution?

The concentration of dilute solution is 0.72M

Explanation:

According to the given question

V1=30 ml

S1 = 12 M

V2 = 500 ml

then S2 = ?

we all know that V1S1=V2S2

or S2 = V1S1:V2

or S2 = 30*12:500

or S2 = 360:500

or S2 = 0.72 M.

The concentration of dilute solution is 0.72 M