1. The problem statement, all variables and given/known data 63.0ml of a 1.70 M solution is diluted to a total volume of 248mL. A 124-mL portion of that solution is diluted by adding 167mL of water. What is the final concentration? Assume the volumes are additive 2. Relevant equations What is going on in this equation? 3. The attempt at a solution You have 248 mL solution but 63mL of that solution is with the molarity of 1.7. When it says 124mL portion of that solution is diluted by adding 167mL of water. That would mean of the 248 mL, 167mL is water but it initially says 63mL is a solution. so that would leave extra water. I must be thinking of this wrong. any suggestions?