document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=216262>Question 216262</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much pure iodine must be added to 250 mL of 8% iodine solution to get a 20% iodine solution?\r<BR>\n" );
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document.write( "Please help me, I am confused on how to do this. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #163311 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=163311\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How much pure iodine must be added to 250 mL of 8% iodine solution to get a 20% iodine solution?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "iodine + iodine = iodine<BR>\n" );
document.write( "0.08*250 + x = 0.20(x+250)<BR>\n" );
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document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "8*250 + 100x = 20x + 20*250<BR>\n" );
document.write( "80x = 12*250<BR>\n" );
document.write( "x = 3.75 mL (amount of pure iodine needed for the mixture)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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