Acid dissociation

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Chris Dis3L
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Joined: Fri Sep 28, 2018 12:25 am

Acid dissociation

Postby Chris Dis3L » Sun Dec 02, 2018 11:50 pm

Is it possible for 100% of an acid to dissociate with absolutely no atoms left un-ionized? If a strong acid can achieve complete dissociation, where is the cutoff point where some atoms are left un-ionized? I have the same question in regards to bases.

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Joined: Fri Sep 28, 2018 12:17 am

Re: Acid dissociation

Postby LuisG14A1J » Mon Dec 03, 2018 10:06 am

I'm not entirely sure of your question? Are you asking if it's possible experimentally and in reality for 100% dissociation? Probably not based on what Dr. Lavelle said. It's near impossible for 100% efficiency for regular dissociation. That's why we round up that strong acids and bases act like they have 100% dissociation because the small error is small enough to not affect calculations much at all. But perhaps at a very precise experimental level, it most definitely would matter How much a specific strong acid dissociates, ratio wise.
The other reason why it's not 100% efficiency is the small chance of potential impurities causing measurement errors.

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Joined: Fri Sep 28, 2018 12:23 am

Re: Acid dissociation

Postby marisaimbroane1J » Mon Dec 03, 2018 11:01 am

Although the acid may not be 100% dissociated, in calculations with acids and bases, we act like it is. The dissociation is close enough to 100% to assume that the concentrations of the products are equal to the concentration of the reactant.

Liza Hayrapetyan-3K
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Joined: Fri Sep 28, 2018 12:25 am

Re: Acid dissociation

Postby Liza Hayrapetyan-3K » Tue Dec 04, 2018 8:27 pm

It's impossible for it to be 100% dissolved, so we must assume its 100%.

Daniel Bowen 3I
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Joined: Fri Sep 28, 2018 12:24 am

Re: Acid dissociation

Postby Daniel Bowen 3I » Fri Dec 07, 2018 7:52 pm

Would there be any cases where we wouldn't assume 100% dissociation and if so what would they be

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Joined: Fri Sep 28, 2018 12:16 am

Re: Acid dissociation

Postby 305117729 » Fri Dec 07, 2018 9:14 pm

most acids and bases will not dissociate 100%, but in our course we currently assume they are 100% dissociated.

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