The Ka for methanoic acid, the chemical that causes the sting in insect bites, is 1.8 x 10^-4. Calculate the pH of a 0.40 mol/L methanoic acid solution.

The Ka for methanoic acid, the chemical that causes the sting in insect bites, is 1.8 x 10^-4. Calculate the pH of a 0.40 mol/L methanoic acid solution.

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