how to determine

Moderators: Chem_Mod, Chem_Admin

lauraxie2e
Posts: 92
Joined: Fri Aug 09, 2019 12:17 am

how to determine

Postby lauraxie2e » Tue Dec 03, 2019 7:22 pm

Does a compound have to contain hydrogen to be amphoteric?

Shail Avasthi 3C
Posts: 86
Joined: Fri Aug 30, 2019 12:17 am

Re: how to determine

Postby Shail Avasthi 3C » Tue Dec 03, 2019 8:09 pm

No. Take the amphoteric oxides as an example (e.g. Al2O3). If you react Al2O3 with a strong acid, it will act as a base by producing hydroxide ions. If you react Al2O3 with a strong base, it will act as an acid by producing hydronium ions. None of the amphoteric oxides contain hydrogen.

lauraxie2e
Posts: 92
Joined: Fri Aug 09, 2019 12:17 am

Re: how to determine

Postby lauraxie2e » Tue Dec 03, 2019 8:25 pm

Shail Avasthi 3C wrote:No. Take the amphoteric oxides as an example (e.g. Al2O3). If you react Al2O3 with a strong acid, it will act as a base by producing hydroxide ions. If you react Al2O3 with a strong base, it will act as an acid by producing hydronium ions. None of the amphoteric oxides contain hydrogen.

then can you explain to me how to determine if a substance is ampotheric?

Lauren Tanaka 1A
Posts: 87
Joined: Sat Aug 17, 2019 12:18 am

Re: how to determine

Postby Lauren Tanaka 1A » Tue Dec 03, 2019 9:40 pm

An amphoteric compound is one that has both acidic and basic characters. Because of this they resemble more metalloids that react with water which is why the diagonal band of amphoteric compounds is similar to the diagonal band of metalloids on the periodic table.


Return to “Amphoteric Compounds”

Who is online

Users browsing this forum: No registered users and 2 guests