Question

0 ml of a 1.30 m solution is diluted to a total volume of 248 ml. a 124-ml portion of that solution is diluted by adding 189 ml of water. what is the final concentration

Answer 1

0.2842 M * 114 ml = M2 * (114+137) ml ... 228 mL = 0.228 L 114 mL ... Final concentration (or molarity) = (0.0324 moles) / [(0.114 L + 0.137 L)]