we can use the dilution formula when preparing diluted solutions from more concentrated solutions c1v1 = c2v2 where c1 is concentration and v1 is volume of the concentrated solution and c2 is concentration and v2 is volume of the diluted solution to be prepared substituting the values in the equation 2.5 M x V = 0.50 M x 100.0 mL V = 20 mL 20 mL of 2.5 M stock solution is required to prepared the diluted solution
