Well if I was wondering, if we put HF$\ce{HF}$ into a glass of water the acid will be dissolved according to this reaction: HF->F- + H+ Now
$$\ce{HF->F- + H+}$$
Now there is a proton travelling across the water.Why it is travelling is due to
All : all H20$\ce{H2O}$ molecules have equal chance of getting the proton so it travels through the liquid.Now
Now for the reaction F- + H2O ->HF + OH-
$$\ce{F- + H2O ->HF + OH-}$$
the bond strength between O and H is lower than the bond strength of F and H (fluorine is has more electronegativity and electronegative and has a smaller atomic radius than O).According
According to Bronsted-Lowry theory for acids and bases the second reaction happens more often than the first one.But But how is this happening?The Why does the second reaction happen athappen at all.Oxygen? Oxygen is more negatively charged than fluorine so the proton would have a very small chance to reach fluorine and then the electrons would be rearranged to form the HF bond.