document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=804760>Question 804760</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You have 3 liters of 28% solution of sodium hydroxide. What is the amount and concentration of sodium hydroxide you must add to this to end up with 7 liters of 48% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #484926 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=484926\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You have 3 liters of 28% solution of sodium hydroxide. What is the amount and concentration of sodium hydroxide you must add to this to end up with 7 liters of 48% solution?<BR>\n" );
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document.write( "You have to add 4 liters to make 7 liters.<BR>\n" );
document.write( "3*28 + 4*C = 7*48<BR>\n" );
document.write( "84 + 4C = 336<BR>\n" );
document.write( "4C = 252<BR>\n" );
document.write( "C = 63% </SPAN>\n" );
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