SOLUTION: How much of a 60% acid solution must be mixed with 50 gallons of a 24% acid solution to obtain a solution that is 50% acid?

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Question 711678: How much of a 60% acid solution must be mixed with 50 gallons of a 24% acid solution to obtain a solution that is 50% acid?
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
How much of a 60% acid solution must be mixed with 50 gallons of a 24% acid solution to obtain a solution that is 50% acid?
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Equation:
acid + acid = acid
0.60x + 0.24*50 = 0.50(x+50)
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60x + 24*50 = 50x + 50*50
10x = 26*50
x = 130 gallons (amt. of 60% solution needed)
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Cheers,
Stan H.
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