Answer:
The final molarity is 2,25M.
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 use the formula for dilutions:
C1 x V1 = C2 x V2
15,0 M x 75 ml = C2 x 500 ml
C2= (15,0M x 75 ml)/500ml
C2=2,25 M
