SOLUTION: How many liters of a 20% solution of acid should be added to 10 liters of a 30% solution of acid to obtain a 25% solution?
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Question 936044: How many liters of a 20% solution of acid should be added to 10 liters of a 30% solution of acid to obtain a 25% solution?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How many liters of a 20% solution of acid should be added to 10 liters of a 30% solution of acid to obtain a 25% solution?
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Equation:
acid + acid = acid
0.20x + 0.30*10 = 0.25(x+10)
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20x + 30*10 = 25x + 25*10
5x = 5*10
x = 10 liters (amt. of 20% solution to add)
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Cheers,
Stan H.
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