Bronsted Acids and Bases

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melissa_dis4K
Posts: 106
Joined: Fri Sep 28, 2018 12:28 am

Bronsted Acids and Bases

Postby melissa_dis4K » Sat Dec 08, 2018 10:59 am

Can someone pls explain how H2SO3 is a bronsted acid? I thought the sulfur could accept a proton with its lone pair making it a bronsted base but that is not correct. Thank you!
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melissa_dis4K
Posts: 106
Joined: Fri Sep 28, 2018 12:28 am

Re: Bronsted Acids and Bases

Postby melissa_dis4K » Sat Dec 08, 2018 11:01 am

Would it be because it is already stable since the formal charge of Sulfur with the lone pair is 0?
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daniella_knight1I
Posts: 57
Joined: Fri Sep 28, 2018 12:18 am

Re: Bronsted Acids and Bases

Postby daniella_knight1I » Sat Dec 08, 2018 8:40 pm

The molecule is stable and more favorable not giving up it's lone pair, therefore it's a base.
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Eva Zhao 4I
Posts: 101
Joined: Sun Sep 29, 2019 12:16 am

Re: Bronsted Acids and Bases

Postby Eva Zhao 4I » Wed Nov 27, 2019 12:27 pm

Bronsted acids are proton donors. I believe that H2SO3 is a Bronsted acid because it can donate a proton to become HSO3-, its conjugate base.
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