stupid chem question

[holla]

yo guys, i know this is really stupid, but i have a fear that the mcat will put a real easy chem question regarding bonding on their..and so my question is how exacly are molecules such as H2CO3 and H2SO4 bonded. like where the hell do the Hydrogens go

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[freakazoid]

Just think it through. Since you know that carbonic acid and sulfuric acid are acids, it makes most sense if the hydrogens are bonded to oxygens . . .

 

[rCubed]

for sulphuring acid, sulphur's the central atom, surrounded by the four oxygens. two of those have hydrogens attached to them.
because there are four oxygens, its easy to give up a hydrogen since there can be major resonance going on, hence its a strong acid

 

[rCubed]

HO---C==O
l
OH


does that look right for carbonic acid? it seems a little off for some reason

 

[rCubed]

Originally posted by rCubed
HO---C==O
l
OH


does that look right for carbonic acid? it seems a little off for some reason

ughhh..its not coming out right...lets just say that the OH on the second line is bonded to the carbon

 

[holla]

wouldnt the C be bonded to the 3 O molecules..instead of just 2

 

[holla]

oh aight yeah that's what i thought too..thanks guys

 

[DALABROKA]

O
II
H-O-C-O-H
(H2CO3)




O
II
H-O-S-O-H
II
O
(H2SO4)

If you see these tyoes of Q's remeber to satisfy the octets, formal charge rules and bonding rules.

 

[DALABROKA]

Well, for some reson the post gets reformatted when you submit it. Anyway, you have the idea.

 

[Viraj]

Well I don't know if in General Chem we were tought about Co-ordinate bonds, that is what happens in Carbonic and Sulphuric Acid, it also is the same in Nitric Acid.