2016 FRQ q6-(b) 이 문제에 대해서 제가 정확히 이해했는지 확인해주세요:

When a solution is diluted, the percent ionization increases.

In this case, the solution is also diluted, and that will increase the percent ionization of Ba(EDTA)2-

Since Ba(EDTA)2- ionizes more readily to produce Ba2+, there will be more moles of Ba2+ now. So the number of moles of Ba2+ increases.