document.write( "Question 697704: how much of a 25% acid solution should be mixed with 5 L of a 15% acid solution to obtain a 20% acid solution? \n" ); document.write( "
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how much of a 25% acid solution should be mixed with 5 L of a 15% acid solution to obtain a 20% acid solution?
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\n" ); document.write( "20 is the average of 15 & 25, so it's equal amounts.
\n" ); document.write( "5 liters.
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