Water as an acid and base

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TarynD_1I
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

Water as an acid and base

Postby TarynD_1I » Sun Dec 01, 2019 8:24 pm

How does water act as both a Bronsted acid and a base?

ishaa Diwakar 4E
Posts: 56
Joined: Wed Sep 11, 2019 12:17 am

Re: Water as an acid and base

Postby ishaa Diwakar 4E » Sun Dec 01, 2019 8:27 pm

Water acts as a bronsted acid because it can donate a proton: H2O --> H+ + OH-. It acts as a base because it can also accept a proton:
H2O + H+ --> H3O+.

kevinolvera1j
Posts: 103
Joined: Fri Aug 02, 2019 12:15 am

Re: Water as an acid and base

Postby kevinolvera1j » Sun Dec 01, 2019 9:07 pm

Water is amphoteric meaning it can react as an acid or base. While acting as a base it accepts a proton from an acid and becomes a hydronium ion. While acting as an acid, it donates a proton and then becomes a hydroxide ion.

Patricia Chan 1C
Posts: 50
Joined: Sat Jul 20, 2019 12:16 am

Re: Water as an acid and base

Postby Patricia Chan 1C » Sun Dec 01, 2019 9:10 pm

Water can act as both a proton acceptor and a proton donator. It can both accept a proton and become a hydronium ion (thus acting as a base), and donate a proton and become a hydroxide ion (thus acting as an acid). Hope this helps!

Sofia Barker 2C
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Joined: Wed Sep 18, 2019 12:21 am

Re: Water as an acid and base

Postby Sofia Barker 2C » Sun Dec 01, 2019 9:38 pm

Water can act as a Bronsted acid or base because it is capable of donating and accepting H+ ions. H20 can react to become H30+ when it accepts H+ or it can react to become OH- when it donates an H+ ion. Water is thus considered amphoteric because of this duality.

Elizabeth Johnson 1I
Posts: 53
Joined: Wed Sep 11, 2019 12:16 am

Re: Water as an acid and base

Postby Elizabeth Johnson 1I » Sun Dec 01, 2019 11:08 pm

when we are talking about donating a proton, it's always in reference to hydrogen, correct?

Isabella Dal Porto 1H
Posts: 100
Joined: Fri Aug 30, 2019 12:16 am

Re: Water as an acid and base

Postby Isabella Dal Porto 1H » Sun Dec 01, 2019 11:11 pm

Yes. It is in reference to hydrogen.

Natalie C 1K
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Re: Water as an acid and base

Postby Natalie C 1K » Sun Dec 01, 2019 11:39 pm

water is amphoteric, which means that it can either donate or accept protons


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