Equilibrium sign

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Riya Sood 4G
Posts: 160
Joined: Sat Aug 24, 2019 12:18 am

Equilibrium sign

Postby Riya Sood 4G » Sun Dec 08, 2019 8:13 am

Do we add the equilibrium sign if we are writing the dissociation of a strong acid/strong base ?

Sarah Nichols 4C
Posts: 52
Joined: Sat Aug 24, 2019 12:18 am

Re: Equilibrium sign

Postby Sarah Nichols 4C » Sun Dec 08, 2019 9:07 am

No, because for strong acids and bases we assume 100% dissociation, so after the reaction there will be no reactants in solution, only products

Jacob Motawakel
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Re: Equilibrium sign

Postby Jacob Motawakel » Sun Dec 08, 2019 8:36 pm

No, since strong acids and bases are completely dissociated, it is only a one way reaction. Weak acids and bases use the equilibrium sign because the weak acid/base is not completely dissociated, so there are still H+ or OH- ions on the reactant side, as well as some on the products side.

Rishika Yadav 3D
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Joined: Wed Sep 11, 2019 12:17 am

Re: Equilibrium sign

Postby Rishika Yadav 3D » Sun Dec 08, 2019 8:52 pm

No because reactions with strong acids and bases only go in one direction, while reactions with weak acids and bases reach equilibrium and then occur at a constant rate.

Gerald Bernal1I
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Joined: Thu Jul 11, 2019 12:16 am

Re: Equilibrium sign

Postby Gerald Bernal1I » Sun Dec 08, 2019 8:58 pm

Equilibrium sign is added only for weak acids and bases since they do not dissociate or ionize fully.

Dominic Benna 2E
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Joined: Wed Sep 30, 2020 10:09 pm

Re: Equilibrium sign

Postby Dominic Benna 2E » Fri Dec 04, 2020 1:52 pm

No because there will be theoretically a 100% dissociation of the acid or base.

Kristina Krivenko 3I
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Re: Equilibrium sign

Postby Kristina Krivenko 3I » Fri Dec 04, 2020 6:31 pm

No, we don't write the equilibrium sign when writing reactions for the dissociation of a strong acid/strong base because the assume that they dissociate completely.

IanWheeler3F
Posts: 55
Joined: Wed Sep 30, 2020 9:49 pm

Re: Equilibrium sign

Postby IanWheeler3F » Sun Dec 06, 2020 5:05 pm

The Ka values of strong acids and bases are so large that it can be assumed that there is no back and forth between which species are present, there are just protons and anions.

Ava Nickman
Posts: 65
Joined: Wed Sep 30, 2020 9:54 pm

Re: Equilibrium sign

Postby Ava Nickman » Sun Dec 06, 2020 5:10 pm

No the dissociation is complete and the equilibrium sign does not apply

Ximeng Guo 2K
Posts: 74
Joined: Wed Sep 30, 2020 9:54 pm

Re: Equilibrium sign

Postby Ximeng Guo 2K » Sun Dec 06, 2020 7:35 pm

No because we assume that strong acids/bases are completely ionized in water


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