When is does a compound act as an acid or base?

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Ryan Fang 1D
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Joined: Sat Jul 22, 2017 3:00 am

When is does a compound act as an acid or base?

Postby Ryan Fang 1D » Tue Dec 05, 2017 7:38 pm

For example, how would we know if HCO3- loses its H+ proton in water or gains an H+ proton?

Eli Aminpour 2K
Posts: 50
Joined: Fri Sep 29, 2017 7:04 am

Re: When is does a compound act as an acid or base?

Postby Eli Aminpour 2K » Tue Dec 05, 2017 10:02 pm

H2CO3 is the formula for carbonic acid. It's Ka is higher than 10^-7 so it will act as an acid in water. Its conjugate base is HCO3-, which acts as a base in water. If your not sure whether or not a compound will act as a base or acid, check its Ka/Kb values or determine whether its the conjugate base or acid of well known acids and bases.


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