document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=495605>Question 495605</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A pot contains 2 L of brine at a concentration of 90 g/L. How much of the water should be boiled off to increase the concentration to 180 g/L </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #336137 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=336137\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=amount of water that needs to be boiled off\r<BR>\n" );
document.write( "\n" );
document.write( "Now we know that the total amount of salt that exists before before x amount of water is boiled off has to equal the total amount of salt that exists after the water is boiled off.\r<BR>\n" );
document.write( "\n" );
document.write( "Total amount of salt before the water is boiled off is (2 liters)*90 g/l=180g<BR>\n" );
document.write( "Total amount of salt after x amount of water is boiled off is (2-x)liters*180g/l<BR>\n" );
document.write( "Soooo<BR>\n" );
document.write( "180g=(2-x)180g/l<BR>\n" );
document.write( "180=360-180x<BR>\n" );
document.write( "-180x=-180<BR>\n" );
document.write( "x=1 liter\r<BR>\n" );
document.write( "\n" );
document.write( "Hope this helps ---ptaylor </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );