Question

When a ph probe is inserted into a solution containing the chloride ion it is neutral. what is the ph of a solution containing the fluoride ion? view available hint(s) when a ph probe is inserted into a solution containing the chloride ion it is neutral. what is the ph of a solution containing the fluoride ion? the solution will be weakly acidic the solution will be strongly acidic. the solution will be neutral. the solution will be weakly basic the solution will be strongly basic?

Answer 1

Hi!

When a ph probe is inserted into a solution containing the fluoride ion, the solution will be weakly basic.

The fluoride ion behaves like a weak base in aqueous solution, following the reaction that is shown below:

F⁻ + H₂O ⇄ HF + OH⁻

The OH⁻ ions generated in this reaction will make the solution weakly basic. The pKb value of the fluoride ion is 10,8 meaning that it is a weak base (Stronger bases have lower pKb values).