document.write( "Question 827286: I have two different solutions of sulfuric acid, one with 75% acid and one with 45% acid. If I want to end up with 250ml of 50% acid solution, how much of each solution do I need to use? \n" ); document.write( "
Algebra.Com's Answer #498587 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! I have two different solutions of sulfuric acid, one with 75% acid and one with 45% acid. If I want to end up with 250ml of 50% acid solution, how much of each solution do I need to use? \n" ); document.write( "---------- \n" ); document.write( "Equation: \n" ); document.write( "acid + acid = acid \n" ); document.write( "0.75x + 0.45(250-x) = 0.50*250 \n" ); document.write( "--------- \n" ); document.write( "75x + 45*250 - 45x = 50*250 \n" ); document.write( "--------- \n" ); document.write( "30x = 5*250 \n" ); document.write( "--------- \n" ); document.write( "x = 41 2/3 ml (amt. of 75% solution needed) \n" ); document.write( "----- \n" ); document.write( "250-41 2/3) = 208 1/3 ml (amt. of 45% solution needed) \n" ); document.write( "----- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |