You wish to make a 0.341 M hydroiodic acid solution from a stock solution of 6.00 M hydroiodic acid. How much concentrated acid must you add to obtain a total volume of 75.0 mL of the dilute solution?

 The volume of concentrated acid  added will be 4.26 ml

Explanation:

The expression used will be dilution law:

where,

= concentration of stock = 6.00 M

= concentration of resulting = 0.341 M

= volume of stock = ?

= volume of resulting = 75.0 ml

Now put all the given values in the above law, we get the volume of stock added

By solving the terms, we get :

Therefore, the volume of concentrated acid  added will be 4.26 ml