document.write( "Question 208108: Hello! I was trying to find hydrogen ion concentration with a ph of 12.4.
\n" ); document.write( "with three place values. \r
\n" ); document.write( "\n" ); document.write( "12.4= -log[H+]\r
\n" ); document.write( "\n" ); document.write( "I was trying to figure out where to go from here.
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Algebra.Com's Answer #157434 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
12.4= -log[H+]
\n" ); document.write( "log[H] = -12.4
\n" ); document.write( "H = 10^-12.4
\n" ); document.write( "H = ~ 3.981E-13\r
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