document.write( "Question 202844: An environmental problem in recent years has been that of acid rain. A substance is acid if its pH is less than 7. Find the pH of a rain sample that has [H30+] of 6.26*10^-8 moles/liter. \n" ); document.write( "
Algebra.Com's Answer #153056 by scott8148(6628)\"\" \"About 
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log[6.26E-8] = -7.20 (approx)\r
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\n" ); document.write( "\n" ); document.write( "so, by definition, pH is 7.20
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