Question 326496: How many ounces of water a chemical must be mixed with 10 ounces of sulfuric acid solution 20% to make it a 68% solution Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! No amount of water added can make a 20% solution into a 68% solution.
Water needs to be removed.
Check your problem set up and re-post.