SOLUTION: A chemist, has a 30% hydrochloric acid solution and a 55% hydrochloric acid solution. How many liters of each should she mix to get 320.313 liters of a hydrochloric acid solution w

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Question 1002519: A chemist, has a 30% hydrochloric acid solution and a 55% hydrochloric acid solution. How many liters of each should she mix to get 320.313 liters of a hydrochloric acid solution with a 39% acid concentration?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A chemist, has a 30% hydrochloric acid solution and a 55% hydrochloric acid solution. How many liters of each should she mix to get 320.313 liters of a hydrochloric acid solution with a 39% acid concentration?
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Equation:
acid + acid = acid
0.30x + 0.55(320.313-x) = 0.39*320.313
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30x + 55*320.313 - 55x = 39*320.313
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-25x = -16*320.313
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x = 205 liters (amt of 30% solution needed)
320.313-x = 115.313 liters (amt of 55% solution needed)
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Cheers,
Stan H.
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