In a buffer system of HF and its salt NaF,
the HF neutralizes added acid
the HF is not necessary.
the HF neutralizes added base.
the F- neutralizes added water.
the F- neutralizes added base.
2 Answers
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the HF neutralizes added base
( HF + OH- >> F- + H2O)
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the HF neutralizes added base, for example if NaOH was added the HF would react with the OH to make H2Oand F-