Question 430436: How many liters of water must be added to 50 L of a 30% acid solution in order to produce a 20% acid solution? Answer by robertb(5830) (Show Source):
You can put this solution on YOUR website! 0.00x + 0.30*50 = 0.20*(x+50)
<==> 15 = 0.20x + 10
<==> 5 = 0.20x
<==> x = 25 liters of water must be added.