Using Henderson-Hasselbalch equation, how do you find pH of a solution that is 11.5g HF and 22.5 g NaF in 125 ml of solution?

1 Answer
anor277
May 16, 2016

Well, work out the concentrations of the acid and its conjugate base, and apply the formula.

Explanation:

#pH# #=# #pK_a+log_10([[F^-]]/[[HF]])#

You can easily work out the concentrations of hydrogen fluoride and its conjugate base with the info given. You will have to find the #pK_a# of #HF#.

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