document.write( "Question 1002191: A chemist needs 1000 mL of a solution that is 40% acid. He has one solution that is 10% acid, and a second solution that is 60% acid. How much of each solution should be mixed together? \n" ); document.write( "
Algebra.Com's Answer #619139 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A chemist needs 1000 mL of a solution that is 40% acid. He has one solution that is 10% acid, and a second solution that is 60% acid. How much of each solution should be mixed together? \n" ); document.write( "------ \n" ); document.write( "Equation: \n" ); document.write( "acid + acid = acid \n" ); document.write( "0.10x + 0.60(1000-x) = 0.40*1000 \n" ); document.write( "-------------- \n" ); document.write( "10x + 60*1000 - 60x = 40*1000 \n" ); document.write( "------------- \n" ); document.write( "-50x = -10*1000 \n" ); document.write( "x = (1/5)(1000) \n" ); document.write( "x = 200 ml (amt. of 10% solution needed) \n" ); document.write( "1000-x = 800 ml (amt. of 40% solution needed) \n" ); document.write( "----------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "------------------------ \n" ); document.write( " |