What is the ka of formic acid

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Reference no: EM13232863

0.25 mol of formic acid (HCO2H) is dissolved in enough water to make one liter of solution. The pH of that solution is 2.19. The Ka of formic acid is

A. 6.5 * 10^-3
B.4.3 * 10^-4
C.1.7 * 10^-4
D. 5.3 * 10^-2
E. 2.7 * 10^-2

Reference no: EM13232863

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