Weaks vs. Strong acids

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Ashley Chipoletti 1I
Posts: 20
Joined: Fri Sep 29, 2017 7:04 am

Weaks vs. Strong acids

Postby Ashley Chipoletti 1I » Wed Nov 29, 2017 9:56 pm

How do you determine whether something is a strong acid or a weak acid?

Wayland Leung
Posts: 51
Joined: Sat Jul 22, 2017 3:00 am
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Re: Weaks vs. Strong acids

Postby Wayland Leung » Wed Nov 29, 2017 10:06 pm

A strong acid completely dissociates when put in water, where the H+ is ionized in the water. A weak acid does not completely ionize in water. Only a small amount of the molecule becomes aqueous in the water. Only a small amount of H+ is ionized.

Jean Mok 3K
Posts: 22
Joined: Sat Jul 22, 2017 3:01 am

Re: Weaks vs. Strong acids

Postby Jean Mok 3K » Wed Nov 29, 2017 11:29 pm

If you are asking how we know, there is a tendency for acids made with elements on the far right side of the periodic table to be strong acids because of their high electronegativity. But we know them mostly from memorizing them!

DAllaf
Posts: 20
Joined: Fri Sep 29, 2017 7:04 am

Re: Weaks vs. Strong acids

Postby DAllaf » Sat Dec 02, 2017 10:04 pm

A way to test the difference in weak acids vs strong acids is by comparing how they react in water. Weak acids tend to partially ionize in water, while strong acids tend to completely dissociate. Essentially we are comparing how much H+ is ionized. Another method is just memorizing which acids are which!


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