SOLUTION: From a full 50 liter container of 40% concentration of acid, x liters is removed and replaced with 100% acid. Determine x if the final mixture is 50% acid.

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Question 655877: From a full 50 liter container of 40% concentration of acid, x liters is removed and replaced with 100% acid. Determine x if the final mixture is 50% acid.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
From a full 50 liter container of 40% concentration of acid, x liters is removed and replaced with 100% acid. Determine x if the final mixture is 50% acid.
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Equation:
acid - acid + acid = acid
0.40*50 -0.40x + 1.00x = 0.50*50
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40*50 - 40x + 100x = 50*50
60x = 10*50
x = (5/6)10
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x = 8 1/3 liters (amt. to be removed and replaced)
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Cheers,
Stan H.
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