If a 32.5 mL of a 15.1 M HCl solution was diluted to 3.25 L with water, what is the final concentration?

The final concentration is 0,151 M.

Explanation:

A dilution consists of the decrease of concentration of a substance in a solution (the higher the volume of the solvent, the lower the concentration).

We convert the unit of volume in L into ml: 3,25 x 1000 = 3250 ml

We use the formula for dilutions:

C1 x V1 = C2 x V2

C2 = (C1 xV1) / V2

C2 = (32, 5 ml x 15, 1 M) / 3250 ml

C2=0,151 M