document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=270140>Question 270140</A>: <I><SPAN STYLE=\"word-break: break-all;\"> why is logarithms used in finding ph vaule? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #197948 by </B><A HREF=/tutors/aboutme.mpl?userid=jsmallt9><B>jsmallt9(3759)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jsmallt9><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=197948\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Logarithms are exponents. And pH is the negative of the exponent of the concentration of H+ ions. So<BR>\n" );
document.write( "pH = -log(concentration of h+) </SPAN>\n" );
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