What volume (cm³) of concentrated HI(5.51M)should be used to prepare 125.0cm³of a 0.100M solution

Answer 1

To calculate the volume of concentrated HI (5.51M) needed to prepare 125.0cm³ of a 0.100M solution, we can use the formula:

M1V1 = M2V2

Where:
M1 = concentration of the concentrated solution (5.51M)
V1 = volume of the concentrated solution needed
M2 = concentration of the diluted solution (0.100M)
V2 = final volume of the diluted solution (125.0cm³)

Plugging in the values, we get:

(5.51M)V1 = (0.100M)(125.0cm³)
V1 = (0.100M)(125.0cm³) / 5.51M
V1 = 2.276cm³

Therefore, you would need to use 2.276cm³ of concentrated HI (5.51M) to prepare 125.0cm³ of a 0.100M solution.