document.write( "Question 207052: Please Please I need help solving a problem in algebra.
\n" ); document.write( "The problem is that I am trying to find the logarithmic formula for finding
\n" ); document.write( "the pH of a substance. The substance that I am using is a grapefruit. The pH is 3.3. Can you help me find the formula. Thank you very much for helping me. \n" ); document.write( "

Algebra.Com's Answer #156544 by scott8148(6628) $\"\"$ $\"About$

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pH is the negative logarithm of the hydrogen ion concentration in a solution\r
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\n" ); document.write( "\n" ); document.write( "the concentration is usually represented by [H+] ___ and measured in moles per liter
\n" ); document.write( "___ H is the chemical symbol for hydrogen; and the ion has a positive charge\r
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\n" ); document.write( "\n" ); document.write( "the pH of water is 7 because the [H+] is 10^-7 moles/liter\r
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\n" ); document.write( "\n" ); document.write( "so the [H+] of grapefruit is the number whose logarithm is -3.3
\n" ); document.write( "___ something between 10^-3 and 10^-4\r
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\n" ); document.write( "\n" ); document.write( "taking the inverse log on a calculator ___ [H+] = 5.0 x 10^4 (approx) \n" ); document.write( "

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