Formic Acid Is a Monoprotic Acid with a K_a Value

question 109

Essay

Formic acid is a monoprotic acid with a K_a value of 1.8 × 10^-4 at 25°C.
a. Calculate the pH of a 0.200 mol L^-1 solution of the acid, making any reasonable approximations.
b. If 0.0050 mol of NaOH is added to 100. mL of the solution in (a), calculate the pH of the resultant buffer.

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