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You have 2.50 L of a 0.450 M HCOOH and 0.550 M HCOONa buffer solution. (Ka...

You have 2.50 L of a 0.450 M HCOOH and 0.550 M HCOONa buffer solution. (Ka for HCOOH is 1.8x10^-4)

a) Calculate the pH of the buffer solution.

b) Determine the pH of the buffer solution after the addition of 0.150 mol of NaOH (assume no change in volume).

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