SOLUTION: Kayla has 25 ounces of a 75% boric acid solution. How many ounces of 35% boric acid solution should she add to obtain a solution of 60% boric acid?

Question 630928: Kayla has 25 ounces of a 75% boric acid solution. How many ounces of 35% boric acid solution should she add to obtain a solution of 60% boric acid?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Kayla has 25 ounces of a 75% boric acid solution. How many ounces of 35% boric acid solution should she add to obtain a solution of 60% boric acid?
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Equation:
acid + acid = acid
0.75*25 + 0.35x = 0.60*(25+x)
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75*25 + 35x = 60*25 + 60x
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25x = 15*25
x = 15 ounces (amt. of 35% ba to be added)
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Cheers,
Stan H.
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