document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1126094>Question 1126094</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A scientist is working with two different concentrations of hydrochloric acid (HCl).  One bottle is 80% HCl, and the other is 50% HCl.  For their experiment they need 1 liter of 70% HCl. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #742447 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13209)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=742447\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Since this is a math website and not a chemistry website, we should allow the possibility that the given concentrations are unlikely or impossible.  The clear intention of the problem is to give you practice solving mixture problems.<br><BR>\n" );
document.write( "Here is the fastest way to solve such problems, without algebra.<br><BR>\n" );
document.write( "70% is 2/3 of the way from 50% to 80% (do a little mental arithmetic)<BR>\n" );
document.write( "Therefore, 2/3 of the 1 liter mixture should be the 80% acid.<br><BR>\n" );
document.write( "(mathematical) ANSWER: 1/3 liter of 50% HCl and 2/3 liter of 80% HCl. </SPAN>\n" );
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