Dilution in Chemistry

Question

A  portion of a  solution is diluted to a total volume of  A  portion of that solution is diluted by adding  of water. What is the final concentration? Assume the volumes are additive.

Answer 1

If 0.1726 = the answer

maybe the problem

was it started with 0.6904

diluted with an equal amount of water making 0.6904/2 = 0.3452

dilute again with an equal amount of water (twice the wated added the first dilution) to get 0.3452/2 = 0.1726

But if the same amount of water was added each time, then

it started with 0.5178 with 1st dilution of an equal amount of water to get 0.5178/2 = 0.2589

then dilute with as much water as the 1st dilution to get 0.2589/1.5 = 0.1726

if you provide more details, such as how strong the soluton you started with and how much water was used to dilute the 1st time and how much water the 2nd time, you could solve the problem. There are an endless number of possiblities that the problem's numbers could have been. Varying the solution originally, but clearly greater than 0.1726 and less than 1.000. If the water used were very small, then the original solution was closer to 0.1726. if the original solution were closer to full strength, near 1.000, then the water needed to dilute would be larger

1.000 full strength diluted by an equal amount would reduce it to 0.500, then dilute again with water of an amount =.3452 times the first diluted amount

would end up with a solution = 0.1726