Question 611242: How many liters of a 80% acid solution must you mix with 10 liters of a 20% acid solution if you want to end up with a 40% acid solution? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! How many liters of a 80% acid solution must you mix with 10 liters of a 20% acid solution if you want to end up with a 40% acid solution?
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Equation:
acid + acid = acid
0.80x + 0.20*10 = 0.40(x+10)
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80x + 20*10 = 40x + 40*10
40x = 20*10
x = 5 liters (amt. of 80% solution to be added)
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cheers,
Stan H.
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