Question

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?

Answer 1

Answer: The volume of concentrated acid added will be 4.26 ml

Step-by-step explanation:

The expression used will be dilution law:

`M_1V_1=M_2V_2`

where,

`M_1` = concentration of stock
`HI` = 6.00 M

`M_2` = concentration of resulting
`HI` = 0.341 M

`V_1` = volume of stock
`HI` = ?

`V_2` = volume of resulting
`Hl` = 75.0 ml

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

`6.00* V_1=0.341* 75.0`

By solving the terms, we get :

`V_1=4.26ml`

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