Formic or methanoic acid (H2CO2) is a weak acid found in an ant and bee stings. The effect of the acid upon stinging is toxic to human. Determine the pOH and [OH-] of 0.50 M of this acid in human tissue from the stings. The Ka value of the formic acid is 2.5x10-4. [Hint: Consider 0.50 M in your calculation because the concentration is significant thus has poisoning effect.]
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Answer:
pOH=12(approximately)
[OH-]=8.95×10^-13
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