document.write( "Question 29942: How many litres of pure hydrochloric acid must be mixed with 3 liters of 20% hydrochloric acid to make 50% hydrochloric acid? Thanks for the help \n" ); document.write( "
Algebra.Com's Answer #16720 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! Let the solution be x\r \n" ); document.write( "\n" ); document.write( "Equation: \n" ); document.write( "3(20)=50(x-3) \n" ); document.write( "60=50x-150 \n" ); document.write( " \n" ); document.write( "x=4.2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hence, about 4.2L of hydrocholric acid is needed. \n" ); document.write( "Paul. \n" ); document.write( " |