document.write( "Question 1007134: A Chemist has 35% NaCl solution and 50% NaCl solution. How many liters of each should he mix to get 10L of NaCl solution with 40% base concentration?\r
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Algebra.Com's Answer #623127 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
Call the amount of 35% solution, x.
\n" ); document.write( "Then the amount of 50% solution would be 10-x.
\n" ); document.write( "The set up looks like this:
\n" ); document.write( ".35x + .50(10-x) = .40(10)
\n" ); document.write( "Now work it out...
\n" ); document.write( ".35x + 5 - .50x = 4
\n" ); document.write( "-.15x = -1
\n" ); document.write( "x = 6.67 L of 35% and then
\n" ); document.write( "10-x = 3.33 L of 50% solution
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