Textbook 6A.17

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Shannon Asay 1C
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Joined: Fri Aug 09, 2019 12:16 am

Textbook 6A.17

Postby Shannon Asay 1C » Tue Dec 03, 2019 2:54 pm

State whether the following oxides are acidic, basic, or amphoteric: (a) BaO; (b) SO3; (c) As2O3; (d) Bi2O3.

How do we tell when it's amphoteric or not?

005391550
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Joined: Thu Jul 25, 2019 12:15 am

Re: Textbook 6A.17

Postby 005391550 » Tue Dec 03, 2019 3:00 pm

most amphoteric oxides align with the metalloid diagonal. For example c and d are amphoteric because As and Bi are metalloids

Malik Oda 1F
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Re: Textbook 6A.17

Postby Malik Oda 1F » Tue Dec 03, 2019 3:01 pm

Amphoteric simply means that the ion is able to act as both an acid and a base.

Ashley Kao 1H
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Joined: Thu Jul 25, 2019 12:16 am

Re: Textbook 6A.17

Postby Ashley Kao 1H » Sat Dec 07, 2019 11:57 am

How would we know that SO3 is acidic? Couldn't it be amphoteric as well?

IreneGi2I
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Joined: Wed Sep 18, 2019 12:19 am

Re: Textbook 6A.17

Postby IreneGi2I » Fri Dec 11, 2020 10:38 pm

Ashley Kao 1H wrote:How would we know that SO3 is acidic? Couldn't it be amphoteric as well?


Generally, metal oxides (Group 1 and Group 2) are basic, and nonmetal oxides (right-hand side of periodic table) are acidic. Also, metalloid oxides tend to be amphoteric.

Since SO3 has S atom, which is nonmetal, we can determine it is acidic. Hope this helps!


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