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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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liz22 liz22
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11 years ago
Hi. My chem. textbook says that the average bond enthalpy for an O-H bond in the hydronium ion is 84 kJ/ mol greater than the average O-H bond enthalpy in H2O.  I was trying to think of why this is. Is it because the extra H+ atom is essentially a proton, and when attached to the molecule increases the hold of the nuclei on the e- in the molecule?  Thanks a lot!
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#1
11 years ago
It's because the electrons of bond are dislocated in a bigger area than simple H2O, I think
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