SOLUTION: Mix a solution that is 50% acid with a solution that is 100% water to make 4L of a solution that is 10% acid. How much of each solution do you use?

Question 108325: Mix a solution that is 50% acid with a solution that is 100% water to make 4L of a solution that is 10% acid. How much of each solution do you use?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Mix a solution that is 50% acid with a solution that is 100% water to make 4L of a solution that is 10% acid. How much of each solution do you use?
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Just keep track of the acid.
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50% solution DATA:
Amount = x liters ; amt of acid = (1/2)x liters
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100% water DATA:
Amount = "4-x" liters ; amt of acid = 0
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10% solution DATA:
Amount = 4 liters ; amt of acid = 0.40 liters
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EQUATION:
acid + acid = acid
(1/2)x + 0 = 0.40
x = 0.8 liters
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Cheers,
Stan H.

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