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The venom of biting ants contains formic acid, HCOOH (Ka=1.8*10^-4 at 25 C). What is the pH of a 0.065 M solution of formic acid?

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Formic Acid (CH2O2)

asked Aug 23, 2015 in Chemistry by frang (1,700 points)
edited Aug 24, 2015 by frang

1 Answer

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1.8 x 104 = x2/ 0.065-x 
x = [H+]= 0.0034 M 
pH = 2.5

answered Sep 13, 2015 by thb (2,000 points)