document.write( "Question 1002519: A chemist, has a 30% hydrochloric acid solution and a 55% hydrochloric acid solution. How many liters of each should she mix to get 320.313 liters of a hydrochloric acid solution with a 39% acid concentration?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #619393 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
A chemist, has a 30% hydrochloric acid solution and a 55% hydrochloric acid solution. How many liters of each should she mix to get 320.313 liters of a hydrochloric acid solution with a 39% acid concentration?
\n" ); document.write( "-----
\n" ); document.write( "Equation:
\n" ); document.write( "acid + acid = acid
\n" ); document.write( "0.30x + 0.55(320.313-x) = 0.39*320.313
\n" ); document.write( "------
\n" ); document.write( "30x + 55*320.313 - 55x = 39*320.313
\n" ); document.write( "-----------
\n" ); document.write( "-25x = -16*320.313
\n" ); document.write( "------
\n" ); document.write( "x = 205 liters (amt of 30% solution needed)
\n" ); document.write( "320.313-x = 115.313 liters (amt of 55% solution needed)
\n" ); document.write( "------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "-------------
\n" ); document.write( "
\n" );