Amphoteric Compounds
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Amphoteric Compounds
How do you determine whether a compound is amphoteric, and what is the significance?
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Re: Amphoteric Compounds
Amphoteric compounds can act as an acid or base by accepting or donating an H+, and you determine this by adding or removing H+. There's a more detailed breakdown with examples on this website that helped me: https://opencurriculum.org/5420/amphoteric-substances/
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Re: Amphoteric Compounds
The definition of amphoteric is a species that is able to act as both a base and acid, which means it should be able to accept and donate a proton when need be. There's nothing significant about it. I think we just need to know that it acts as a base and acid.
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Re: Amphoteric Compounds
Hello!!
Because amphoteric compounds are those that can act as both acids and bases, the method I use to determine whether a species is amphoteric or not is to derive both a base and acid from said species. To exemplify, if you remove a proton from H2O, you get OH- (hydroxide ion), which is basic. Conversely, if you add a proton to H2O, you get H3O+ (hydronium ion), which is an acid. Therefore, H2O is an amphoteric compound.
Because amphoteric compounds are those that can act as both acids and bases, the method I use to determine whether a species is amphoteric or not is to derive both a base and acid from said species. To exemplify, if you remove a proton from H2O, you get OH- (hydroxide ion), which is basic. Conversely, if you add a proton to H2O, you get H3O+ (hydronium ion), which is an acid. Therefore, H2O is an amphoteric compound.
Re: Amphoteric Compounds
Compounds that contain an H ion and have a negative charge care good candidates for being amphoteric, as they generally have lost a proton (acid) and can also accept a proton (base). There are also the ones that Lavelle mentioned in class that you just have to memorize, which are the oxides of Be, Al, Ga, Sn, Sb, and Pb
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Re: Amphoteric Compounds
Hi! The significance of an amphoteric compound is that it can behave as either an acid or a base, meaning it can either gain or lose a proton/Hydrogen atom in a reaction. Hope this helps!
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Re: Amphoteric Compounds
Amphoteric compounds can act as an acid or base depending on the strength of the material it is reacting with.
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Re: Amphoteric Compounds
Just being able to understand that a compound can both receive and give an H makes it much easier. If there is a compound with an H and a negative charge, it is a good indicator that it is amhpteric, for example.
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Re: Amphoteric Compounds
Amphoteric compounds can act as an acid and as a base. Generally, these are metalloids.
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Re: Amphoteric Compounds
Hello,
Amphoteric compounds have basic and acidic character depending on what they interact with (acid or base). The diagonal band of amphoteric oxides on the periodic table closely matches the diagonal band of metalloids. These amphoteric compounds are in aqueous solutions. They include:
1. BeO
2. Al2O3
3. Ga2O3
4. SnO2
5. Sb2O5
6. PbO2
Amphoteric compounds have basic and acidic character depending on what they interact with (acid or base). The diagonal band of amphoteric oxides on the periodic table closely matches the diagonal band of metalloids. These amphoteric compounds are in aqueous solutions. They include:
1. BeO
2. Al2O3
3. Ga2O3
4. SnO2
5. Sb2O5
6. PbO2
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Re: Amphoteric Compounds
Amphoteric compounds have the ability to act as either an acid or a base, depending on the reaction they are in. For something to amphoteric, it must be able to both donate and accept a proton (H+).
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Re: Amphoteric Compounds
Amphoteric compounds are classified to have the ability to act as both an acid and base. Furthermore, they must be able to act as a proton donor and acceptor. The most common example being H2O which is able to accept an H+ (H30) or being a donor of H+.
Re: Amphoteric Compounds
An amphoteric compound can act as a base or an acid (can gain or lose a proton/ donate or accept a pair of electrons), but the only important ones that you should know are HSO4- and HPO42- and others in those series.
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Re: Amphoteric Compounds
Amphoteric compounds can act as an acid or a base (donate or accept a proton). There is a diagonal band of amphoteric compounds that is similar to the diagonal band of metalloids because most metalloid oxides are amphoteric.
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