document.write( "Question 819020: A chemist has 100 liters of 30% sodium chloride solution. She intends to drain a certain number of liters and replace with a more concentrated solution.\r
\n" ); document.write( "\n" ); document.write( "a) How much of this solution should she drain and replace with 80% sodium chloride if she wants a 55% sodium chloride solution?
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Algebra.Com's Answer #492903 by josgarithmetic(39617)\"\" \"About 
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NO!\r
\n" ); document.write( "\n" ); document.write( "Where did this problem come from?
\n" ); document.write( "At the dubious concentration of 30% sodium chloride, the solution cannot be made more concentrated.
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