document.write( "Question 459531: How many liters of pure acetic acid must be mixed with 10 liters of a 30% acetic acid soluti0n to get a 60% soluti0n? \n" ); document.write( "
Algebra.Com's Answer #315176 by ptaylor(2198)![]() ![]() You can put this solution on YOUR website! Let x=amount of pure acetic acid needed \n" ); document.write( "Now we know that the amount of pure acetic acid that exists before the mixture takes place (x+0.30*10) has to equal the amount of pure acetic acid after the mixture takes place (0.60(x+10)). Sooooo \n" ); document.write( "x+0.30*10=0.60(x+10) get rid of parens and simplify \n" ); document.write( "x+3=0.60x+6 subtract 3 and also 0.60x from each side \n" ); document.write( "x+3-3-0.60x=0.60x-0.60x+6-3 collect like terms \n" ); document.write( "0.40x=3 \n" ); document.write( "x=7.5 liters----------------amount of pure acetic acid needed\r \n" ); document.write( "\n" ); document.write( "CK \n" ); document.write( "7.5+0.30*10=0.60*17.5 \n" ); document.write( "7.5+3=10.5 \n" ); document.write( "10.5=10.5\r \n" ); document.write( "\n" ); document.write( "Hope this helps---ptaylor \n" ); document.write( " \n" ); document.write( " |