Bronsted Acids and Bases

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MaryBanh_2K
Posts: 101
Joined: Wed Sep 18, 2019 12:21 am

Bronsted Acids and Bases

Postby MaryBanh_2K » Sat Nov 30, 2019 4:50 pm

Since water can donate a proton and accept a proton, is it considered both a bronsted acid and bronsted base? If so, what are other compounds that have this characteristic?

Ethan Lam 4A
Posts: 69
Joined: Thu Jul 11, 2019 12:17 am

Re: Bronsted Acids and Bases

Postby Ethan Lam 4A » Sat Nov 30, 2019 5:55 pm

Yes, water can act like both an acid and a base. Amphoteric compounds have this characteristic. Water and Al2O3 are examples of amphoteric compounds.

rabiasumar2E
Posts: 108
Joined: Thu Jul 11, 2019 12:15 am

Re: Bronsted Acids and Bases

Postby rabiasumar2E » Sat Nov 30, 2019 6:24 pm

Yes water is considered both an acid and a base. Just as the above response says, amphoteric compounds have the characteristic of both. You can find amphoteric oxides on the period table in a diagonal band closely matching the diagonal band of the metalloids.

Simon Dionson 4I
Posts: 107
Joined: Sat Sep 14, 2019 12:17 am

Re: Bronsted Acids and Bases

Postby Simon Dionson 4I » Sun Dec 01, 2019 5:04 pm

water is amphoteric since it can form H3O+ or OH- if it accepts or donates a proton respectively. Another amphoteric molecule is HCO3- (bicarbonate)

It can accept a proton to form H2CO3 (carbonic acid)
It can also donate a proton to form CO3 2- (carbonate ion)


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