Donating H protons

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Tinisha 1G
Posts: 69
Joined: Fri Sep 28, 2018 12:17 am

Donating H protons

Postby Tinisha 1G » Thu Dec 06, 2018 10:06 am

So if a molecule contains 2 hydrogen atoms does that mean it can donate 2 H+ and be a strong bronsted acid?

Sophia Fox 4B
Posts: 29
Joined: Fri Sep 28, 2018 12:27 am

Re: Donating H protons

Postby Sophia Fox 4B » Thu Dec 06, 2018 11:41 am

Yes

nolansheow3G
Posts: 30
Joined: Fri Sep 28, 2018 12:26 am

Re: Donating H protons

Postby nolansheow3G » Thu Dec 06, 2018 5:12 pm

It depends on if the molecule the two hydrogen atoms are attached to will be stable. Molecules tend to exist in the most stable state, so if removing the hydrogen makes the molecule unstable, it isn't likely to donate two hydrogen atoms.

For example:
H2SO4 is likely to lose the two hydrogen because SO4 has resonance and is stable when the hydrogen is removed.

C2H2 is not likely to lose the two hydrogen because diatomic carbon is unstable and the molecule is more stable in its current state.


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