Write formula of the conjugate base for acid HF

Hi Akgupta, thanks a lot for the previous response. Would you mind helping me with a few more questions?

1.)One is attached in a screenshot.

2.) Question is: Write formula of the conjugate base for acid HF. So I did that and got F-, which is correct. But what is the name of the conjugate base that we found?

3.) If 34.7mL of 0.255M KOH is required to completely neutralize 29.0mL of a HC2H3O2 solution, what is the molarity of the acetic acid solution?
HC2H3O2(aq) + KOH(aq) → KC2H3O2(aq) + H2O(l)

 

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