document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=198395>Question 198395</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the pH of a substance of your choice that is alkaline (basic). Using this pH, show how to find the hydrogen ion concentration, [H+], of the substance using the formula. Discuss the meaning of pH and [H+], the pH scale and why your chosen substance is alkaline. Use scientific notation or enough decimal places so that your answer has at least 3 place values. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #152921 by </B><A HREF=/tutors/aboutme.mpl?userid=jsmallt9><B>jsmallt9(3758)</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=152921\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You'll have to measure your own pH. But the relationship between pH and the concentration of H+ ions is pretty straightforward.<br><BR>\n" );
document.write( "Using p for pH and h for H ion concentration the relationship is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-log%28%28h%29%29+=+p ALIGN=MIDDLE  ALT=\"-log%28%28h%29%29+=+p\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "In exponential form this is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h+=+10%5E%28-p%29 ALIGN=MIDDLE  ALT=\"h+=+10%5E%28-p%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );