document.write( "Question 998261: How many cubic centimeters of pure hydrochloric acid should be added to 20 cubic centimeters of a 30% solution of hydrochloric acid to obtain a 50% solution? \n" ); document.write( "
Algebra.Com's Answer #616080 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! How many cubic centimeters of pure hydrochloric acid should be added to 20 cubic centimeters of a 30% solution of hydrochloric acid to obtain a 50% solution? \n" ); document.write( "let x=amt of pure hydrochloric acid to add \n" ); document.write( "30%20+x=50%(30+x) \n" ); document.write( "6+x=15+.50x \n" ); document.write( ".50x=9 \n" ); document.write( "x=18 \n" ); document.write( "How many cubic centimeters of pure hydrochloric acid should be added? 18 \n" ); document.write( " |