SOLUTION: A chemist needs to create a 20% acid solution. She has 4L of a 30% acid solution in a 20-L container. How much water should she mix with this solution to decrease the concentration
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Question 944407: A chemist needs to create a 20% acid solution. She has 4L of a 30% acid solution in a 20-L container. How much water should she mix with this solution to decrease the concentration to the desired 20%? Found 2 solutions by Alan3354, MathTherapy:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A chemist needs to create a 20% acid solution. She has 4L of a 30% acid solution in a 20-L container. How much water should she mix with this solution to decrease the concentration to the desired 20%?
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Add W liters of water
30*4 + 0*W = 20*(W + 4)
You can put this solution on YOUR website!
A chemist needs to create a 20% acid solution. She has 4L of a 30% acid solution in a 20-L container. How much water should she mix with this solution to decrease the concentration to the desired 20%?
