HF

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Meigan Wu 2E
Posts: 66
Joined: Fri Sep 28, 2018 12:29 am
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HF

Postby Meigan Wu 2E » Thu Nov 29, 2018 11:28 am

Why is HF a weak acid?

Rachel-Weisz3C
Posts: 66
Joined: Fri Sep 28, 2018 12:23 am

Re: HF

Postby Rachel-Weisz3C » Thu Nov 29, 2018 11:37 am

If HF could easily ionize into a solution it would not be as weak, however it does not fully ionize because its bonds are too strongly bound.

Sydney Tay 2B
Posts: 64
Joined: Fri Sep 28, 2018 12:20 am

Re: HF

Postby Sydney Tay 2B » Thu Nov 29, 2018 11:39 am

HF is a weak acid because it does not completely dissociate in water. This is most likely due to the fact that the bond between HF is too strong for the molecule to fully dissociate.

Marwan Masri 3B
Posts: 31
Joined: Fri Sep 28, 2018 12:23 am

Re: HF

Postby Marwan Masri 3B » Fri Nov 30, 2018 10:39 am

The strength of an acid depends on how it dissociates in water. The bond between hydrogen and fluorine is strong so there isn't a high concentration of H3O+ ions, meaning it doesn't dissociate as much as other strong acids would.

Bingcui Guo
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

Re: HF

Postby Bingcui Guo » Fri Nov 30, 2018 12:14 pm

F's electronegativity is so strong that it is hard for it to fully release the H+. So it is hard to break the bond between H and F thus HF is a weak acid. But remember, HCl, HBr, HI are all strong acids.

Lopez_Melissa-Dis4E
Posts: 66
Joined: Fri Sep 28, 2018 12:20 am

Re: HF

Postby Lopez_Melissa-Dis4E » Fri Nov 30, 2018 12:25 pm

It is such a weak acid because the bonds associated with it are strong and F is highly electronegative.


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