You are asked to prepare a pH = 3.00 buffer solution starting from 1.25 L of a 1.00 M

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You are asked to prepare a pH = 3.00 buffer solution starting from 1.25 L of a 1.00 M solution of hydrofluoric acid (HF) and any amount you need of sodium fluoride (NaF).

What is the pH of the hydrofluoric acid solution prior to adding sodium fluoride?