HF ion

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sallina_yehdego 2E
Posts: 75
Joined: Sun Apr 29, 2018 3:00 am

HF ion

Postby sallina_yehdego 2E » Wed Dec 05, 2018 5:08 pm

Why is HF not considered a strong acid??

klarratt2
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

Re: HF ion

Postby klarratt2 » Wed Dec 05, 2018 5:44 pm

The bond between fluorine and hydrogen is very strong because of very high electronegativity difference. Because of this, fluorine and hydrogen don't easily dissociate.

Strong acids are acids that completely dissociate. Since it is hard for HF to dissociate completely, it is considered a weak acid.

Zubair Ahmed 1L
Posts: 81
Joined: Fri Sep 28, 2018 12:16 am

Re: HF ion

Postby Zubair Ahmed 1L » Wed Dec 05, 2018 8:35 pm

HF is considered a weak acid due to fluorine's high electronegativity. Acids are considered strong when they completely dissociate in water and have longer, weaker bonds.

George Ghaly 2L
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Joined: Fri Sep 28, 2018 12:29 am
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Re: HF ion

Postby George Ghaly 2L » Wed Dec 05, 2018 8:43 pm

The bond length between the Hydrogen and Flourine atom is very small due to FLourine's high electronegativity, therefore it is harder for the Hydrogen ion to dissociate.


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