Calculate the pH of a solution that is 0.100 M in hydrofluoric acid (HF) and 0.100...
Calculate the pH of a solution that is 0.100 M in hydrofluoric acid (HF) and 0.100 M in sodium fluoride (NaF). Ka of hydrofluoric acid is 6.3 x 10-4
Homework Answers
mixture of NaF and HF act as acidic buffer.
pH = pKa + log [NaF] / [HF]
pKa = - log Ka = - log [6.3 x 10-4]
pKa = 3.20
pH = 3.20 + log [0.1] / [0.1]
pH = 3.20
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