A60.0 ml60.0 ml aliquot of a 1.80 m1.80 m solution is diluted to a total volume of 218 ml.218 ml. a 109 ml109 ml portion of that solution is diluted by adding 107 ml107 ml of water. what is the final concentration? assume the volumes are additive

The final concentration is 0.2497 M.

Explanation:

1. Molarity of the starting solution =

Volume of the starting solution =

After dilution of the solution to 219 mL.

Molarity of solution after dilution =

Volume of the new solution =

(Dilution law)

2. Now,109 mL of 0.495 M solution was diluted by 107 mL

Molarity of the solution =

Volume of the solution =

Molarity of solution after dilution =

Volume of the new solution(107 mL of water is added)  =

(Dilution law)

The final concentration is 0.2497 M.